what element is xe 6s2 4f14 5d7 what element is xe 6s2 4f14 5d7

Cs (Xenon) has the same electron configuration as Xe. What is the difference between Xe and Ze? Tellurium is a brittle, mildly toxic, rare, silver-white metalloid. Thechemical symbolfor Lead isPb. Selenium is a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. what element is xe 6s2 4f14 5d7. For example, carbon has nine possible integer oxidation states from 4 to +4. [Xe] 6s2 4f14 5d3: Ta [Xe] 6s2 4f14 5d10: Hg [Kr] 5s2 4d3: Nb [Ne] 3s2 3p1: Al [Rn] 7s1: Fr: This activity was created by a Quia Web subscriber. Terbiumis a chemical element withatomic number65which means there are 65 protons and 65 electrons in the atomic structure. The electronic configuration is there to distract you: #Z=54+2+14+10+2=82#, and, therefore, the element is LEAD. Thechemical symbolfor Dysprosium isDy. Lawrencium is the final member of the actinide series. Bismuth is a brittle metal with a silvery white color when freshly produced, but surface oxidation can give it a pink tinge. Scribd il pi grande sito di social reading e publishing al mondo. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. The electron configuration can be visualized as the core electrons, equivalent to thenoble gasof the preceding period, and the valence electrons (e.g. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. Thechemical symbolfor Iron isFe. Thechemical symbolfor Samarium isSm. Electron Configuration and Oxidation States of Iridium. Holmium is a part of the lanthanide series, holmium is a rare-earth element. Thechemical symbolfor Indium isIn. Look in the Periodic Table, and Element 56 is barium, Ba. It rarely occurs in its elemental state or as pure ore compounds in the Earths crust. What is the difference between Xe and Ze? Zinc. what element is xe 6s2 4f14 5d7. What element has an electron configuration of xe 6s2 4f14 5d10 6p2? The first two columns on the left side of the periodic table are where thessubshells are being occupied. Titanium can be used in surface condensers. Thechemical symbolfor Molybdenum isMo. Holmium is a relatively soft and malleable silvery-white metal. [Xe] 4f14 5d6 6s2: 77: Ir [Xe] 4f14 5d7 6s2: What is the element 1s2 2s2 2p6? This cookie is set by GDPR Cookie Consent plugin. What element is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1? The 6s and 6p electrons are in the outermost shell, and are therefore the valence electrons. We add the proceeding electrons, which is now a total of 82. All of the alkali metals have a single valence electron in the outer electron shell, which is easily removed to create an ion with a positive charge a cation, which combines with anions to form salts. Ne 3s23p4 c. Xe 6s24f145d7 d. Kr 5s24d105p3 Determine the element for the following electron configuration: 1s22s12p53p34s23d3 A. Ca B. P C. Ar D. S E. V Write complete electron configuration. Terbium is a silvery-white, rare earth metal that is malleable, ductile, and soft enough to be cut with a knife. We also use third-party cookies that help us analyze and understand how you use this website. Caesium is a soft, silvery-gold alkali metal with a melting point of 28.5 C, which makes it one of only five elemental metals that are liquid at or near room temperature. Chromiumis a chemical element withatomic number24which means there are 24 protons and 24 electrons in the atomic structure. Your page rank: Total word count: 344. Os. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. antimony atom >. Learn more about Quia: Thechemical symbolfor Tungsten isW. Tungsten is a rare metal found naturally on Earth almost exclusively in chemical compounds. Indiumis a chemical element withatomic number49which means there are 49 protons and 49 electrons in the atomic structure. Mendeleviumis a chemical element withatomic number101which means there are 101 protons and 101 electrons in the atomic structure. At 0.099%, phosphorus is the most abundant pnictogen in the Earths crust. The electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals. How do electron configurations in the same group compare? The electron configuration of polonium is: [Xe] 6s2 4f14 5d10 6p4. Similarly, adding electrons results in a negative oxidation state. what is the name of the element in the ground state with the electron configuration of [Xe] 6s2 4f14 5d7? Mercuryis a chemical element withatomic number80which means there are 80 protons and 80 electrons in the atomic structure. This cookie is set by GDPR Cookie Consent plugin. Rutheniumis a chemical element withatomic number44which means there are 44 protons and 44 electrons in the atomic structure. Zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. Dysprosium is used for its high thermal neutron absorption cross-section in making control rods in nuclear reactors, for its high magnetic susceptibility in data storage applications. 1. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. What element has the electron configuration Kr 5s2 4d10 5p3? Fermiumis a chemical element withatomic number100which means there are 100 protons and 100 electrons in the atomic structure. Hydrogenis a chemical element withatomic number1which means there are 1 protons and 1 electrons in the atomic structure. These condensers use tubes that are usually made of stainless steel, copper alloys, or titanium depending on several selection criteria (such as thermal conductivity or corrosion resistance). Osmium [Xe] 4f14 5d6 6s2. Entire website is based on our own personal perspectives, and do not represent the views of any company of nuclear industry. Thechemical symbolfor Lithium isLi. 1 What electron configuration is Xe 6s2 4f14 5d6? Like all alkali metals, lithium is highly reactive and flammable, and is stored in mineral oil. Who wrote the music and lyrics for Kinky Boots? Osmium. Thechemical symbolfor Osmium isOs. What element is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1? How many inches tall is a sixteen Oz monster energy can? Polonium is a rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth. Strontium (Sr) [Kr] 5s2. What is the electron configuration for a sodium ion? Caesium has physical and chemical properties similar to those of rubidium and potassium. what element is xe 6s2 4f14 5d7. Thallium is a soft gray post-transition metal is not found free in nature. 4f14 5d6 6s2 [Xe]. Rhenium is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table. Silver is a soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. How to Market Your Business with Webinars. The chemical symbol for Helium is He. Here's the physicist answer. Thechemical symbolfor Terbium isTb. Discoverer: Coster, Dirk and De Hevesy, George Charles, Discoverer: Elhuyar, Juan Jos and Elhuyar, Fausto, Discoverer: Noddack, Walter and Berg, Otto Carl and Tacke, Ida. Nickel is a silvery-white lustrous metal with a slight golden tinge. Use the Aufbau process to fill the orbitals with electrons. Thechemical symbolfor Beryllium isBe. Lead is a heavy metal that is denser than most common materials. Flashcards. element name and shorthand electrical config. The current IUPAC Gold Book definition of oxidation state is: Oxidation state of an atom is the charge of this atom after ionic approximation of its heteronuclear bonds. Periodic Table of Elements with Electron Configuration Trends Thechemical symbolfor Lanthanum isLa. What element is 6s2? A B; hydrogen: 1s1: helium: 1s2: lithium: 1s2 2s1: boron: 1s2 2s2 2p1: carbon: 1s2 2s2 2p2: nitrogen: 1s2 2s2 2p3: fluorine: 1s2 2s2 2p5: neon: 1s2 2s2 2p6: sodium: . Contents. It is even less abundant than the so-called rare earths. Xenon is a chemical element with symbol Xe and atomic number 54. Analytical cookies are used to understand how visitors interact with the website. Leadis a chemical element withatomic number82which means there are 82 protons and 82 electrons in the atomic structure. Neodymium is not found naturally in metallic form or unmixed with other lanthanides, and it is usually refined for general use. antimony atom It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron affinity and the third-highest electronegativity, behind only oxygen and fluorine. In nuclear industry gadolinium is commonly used as a neutron absorber due to very high neutron absorbtion cross-section of two isotopes 155Gd and 157Gd. n. [Xe] 6s2 4f14 5d7. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. Oganesson. Thechemical symbolfor Arsenic isAs. Thuliumis a chemical element withatomic number69which means there are 69 protons and 69 electrons in the atomic structure. what connection type is known as "always on"? Thechemical symbolfor Potassium isK. Potassium was first isolated from potash, the ashes of plants, from which its name derives. The element lead has the electron configuration [Xe] 4f14 5d10 6s2 6p2. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidation in air. Thechemical symbolfor Rubidium isRb. Au [Xe]4f14 5d10 6s2. The cookie is used to store the user consent for the cookies in the category "Performance". Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. PLLZ HELPPP 1s22s22p63s23p4 is a good example. Promethium (Pm) is a Lanthanide element with the atomic number 61. It is thePauli exclusion principlethat requires the electrons in an atom to occupy different energy levels instead of them all condensing in the ground state. Lawrenciumis a chemical element withatomic number103which means there are 103 protons and 103 electrons in the atomic structure. To work backwards and find the element with a given configuration, you first find the noble gas in the Periodic Table. It is a noble metal and a member of the platinum group. Uraniumis a chemical element withatomic number92which means there are 92 protons and 92 electrons in the atomic structure. Rhenium [Xe] 4f14 5d5 6s2. what element is xe 6s2 4f14 5d9 Wearhouse For Sale St Paul, Mn, Jimenez Ja 22 Wood Grips, Labster Immunology Answers, Where To Watch The Outsiders Series, Who Is The Girl In The Girl Biting Lip Meme, Why Isn't Heart And Mind By Kodak On Apple Music, 2p Pusher Arcade Machine, Can Turtles Walk Backwards, Xfinity Dvr Setup, The electronic configuration is there to divert your attention: Z=542+14102=82, so the element is LEAD. Zinc (Zn) [Ar] 4s2 3d10. What is the electron configuration of copper? Aluminumis a chemical element withatomic number13which means there are 13 protons and 13 electrons in the atomic structure. The metal is found in the Earths crust in the pure, free elemental form (native silver), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. 117 Tneso 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p5. how to get to quezon avenue mrt station Uncovering hot babes since 1919. What element is 1s2 2s2 2p6 3s2 3p6 4s2 3d10? Astatine is the rarest naturally occurring element on the Earths crust. What is XE 6s2 4f14 5d6? Illustrate with a box diagram. Thechemical symbolfor Mercury isHg. In some respects zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size. Exceptions & ions i) exceptions to writing the electron configuration there are a few exceptions because: As with every other topic we have covered to date there are exceptions to the . ; 3 What is 51 on the periodic table? 4f6 6s2 152 4f7 6s2 157 4f7 5d1 6s2 159 4f9 6s2 162.5 4f10 6s2 165 4f11 6s2 167 4f12 6s2 169 4f13 6s2 79.90 36 Kr k 83.80 3d3 4s2 3d5 4s1 3d5 4s2 3d6 4s2 3d7 4s2 3d8 4s2 3d104s1 3d10 4s2 3d104s2 4p1 3d104s2 4p2 4s2 4p3 4s2 4p4 4s2 4p5 4s24p6 +3+5 +3+4+6 [-3,+7] +2+3+6 Iron Cobalt Nickel Copper In the case of Iridium the abbreviated electron configuration is [Xe] 4f14 5d7 6s2. Hafniumis a chemical element withatomic number72which means there are 72 protons and 72 electrons in the atomic structure. Thechemical symbolfor Silicon isSi. Thechemical symbolfor Hafnium isHf. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). Gadolinium belongs to a rare earth elements (it is one of a set of seventeen chemical elements in the periodic table). 83. antimony. What is thought to influence the overproduction and pruning of synapses in the brain quizlet? Thorium metal is silvery and tarnishes black when exposed to air, forming the dioxide. In the periodic table, the elements are listed in order of increasing atomic number Z. 118 Oganesn 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p6. answer - Realice la configuracin electrnica para 15 elementos de la tabla peridica cuyos nmeros atmicos se distancien en 3. You also have the option to opt-out of these cookies. The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. kmassarotti is looking for your assistance. Thechemical symbolfor Astatine isAt. What are some examples of electron configurations. Platinum is used in catalytic converters, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and jewelry. Sodiumis a chemical element withatomic number11which means there are 11 protons and 11 electrons in the atomic structure. The element lead has the electron configuration [Xe] 4f14 5d10 6s2 6p2. Magnesiumis a chemical element withatomic number12which means there are 12 protons and 12 electrons in the atomic structure. Protactiniumis a chemical element withatomic number91which means there are 91 protons and 91 electrons in the atomic structure. brian kim, cpa clearvalue tax net worth . A very heavy, precious, silver-white metal, platinum is soft and ductile and has a high melting point and good resistance to corrosion and chemical attack. Rhodium is a rare, silvery-white, hard, corrosion resistant and chemically inert transition metal. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. What is XE 6s2 4f14 5d10 6p2? what element is xe 6s2 4f14 5d7. This makes it : [Xe] 4f 14 5d 9 6s 1 . When finding an atom from its noble gas configuration, start at the noble gas listed, then add the electrons listed. Iridiumis a chemical element with atomic number77which means there are 77 protons and 77 electrons in the atomic structure. Lutetiumis a chemical element withatomic number71which means there are 71 protons and 71 electrons in the atomic structure. Sulfuris a chemical element withatomic number16which means there are 16 protons and 16 electrons in the atomic structure. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. You Are Here: will my player transfer to 2k22 next gen texas roadhouse call ahead seating rules what element is xe 6s2 4f14 5d7. Notes-Chemistry-1-201-300 - Read online for free. Nitrogenis a chemical element withatomic number7which means there are 7 protons and 7 electrons in the atomic structure. Emsley, John. Kryptonis a chemical element withatomic number36which means there are 36 protons and 36 electrons in the atomic structure. Poloniumis a chemical element withatomic number84which means there are 84 protons and 84 electrons in the atomic structure. Classified as a noble gas, Xenon is a gas at room temperature.Xenon. The most probable fission fragment masses are around mass 95 (Krypton) and 137 (Barium). (Enter the chemical symbol or name of the element.) The cookie is used to store the user consent for the cookies in the category "Analytics". This website uses cookies to improve your experience while you navigate through the website. Ph. Patterns of problems. Thechemical symbolfor Radium isRa. [Ne] 3s2 3p1 3. Vanadium. Very soft and malleable, indium has a melting point higher than sodium and gallium, but lower than lithium and tin. In nuclear reactors, promethium equilibrium exists in power operation. Copper. Gold is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Now, we have to use the periodic table to find out the name of this element. Indium is a post-transition metal that makes up 0.21 parts per million of the Earths crust. ( , element) () . How long does it take to cook brats on George Foreman grill? [xe] 6s2 4f4 is which elements noble gas configuration. Platinum is one of the least reactive metals. Fermium is a member of the actinide series. Francium is a highly radioactive metal that decays into astatine, radium, and radon. However, you may visit "Cookie Settings" to provide a controlled consent. [Xe] 6s2 4f14 5d9. Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. Cadmium is a soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. [Xe] 6s2 4f14 5d7 2. Therefor, it is Iridium. The 6s and 6p electrons are in the outermost shell, and are therefore the valence electrons. Americium is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas. Thechemical symbolfor Mendelevium isMd. The electronic configuration is there to divert your attention: Z=542+14102=82, so the element is LEAD. Copyright 2022 DocTHC.com Stout theme by, when did great britain enter world war i brainly, Prince George's County Police Fingerprinting Services, how to stop lips from peeling home remedies, 10 facts about auschwitz concentration camp, 5 types of perceptual illusions psychology, mid plains community college staff directory, genesee hospital rochester ny medical records. Which element has an electronic configuration of Xe 4f14 5d10 6s2? 1. Pages . Thechemical symbolfor Ruthenium isRu. Iridium is a very hard, brittle, silvery-white transition metal of the platinum group, iridium is generally credited with being the second densest element (after osmium). If you continue to use this site we will assume that you are happy with it. 0,00 . Rubidiumis a chemical element withatomic number37which means there are 37 protons and 37 electrons in the atomic structure. Thechemical symbolfor Cobalt isCo. Cobalt is found in the Earths crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. Determine the total number of electrons to be represented. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Bismuth is a pentavalent post-transition metal and one of the pnictogens, chemically resembles its lighter homologs arsenic and antimony. 2) How many valence electrons in a species with one Cl, two O, and one unit negative charge a. How could this be?" I see some good answers that are chemistry answers. Praseodymium is the third member of the lanthanide series and is traditionally considered to be one of the rare-earth metals. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (195.8C) and is used as a coolant. Technetiumis a chemical element withatomic number43which means there are 43 protons and 43 electrons in the atomic structure. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. Thechemical properties of the atomare determined by the number of protons, in fact, by number andarrangement of electrons. Molybdenum a silvery metal with a gray cast, has the sixth-highest melting point of any element. Hafnium is a lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium minerals. How do the electron configurations of transition metals differ from those of other elements? Approximately 6070% of thallium production is used in the electronics industry. Iodineis a chemical element withatomic number53which means there are 53 protons and 53 electrons in the atomic structure. Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars. Possible oxidation states are +2,4. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Neptuniumis a chemical element withatomic number93which means there are 93 protons and 93 electrons in the atomic structure. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Electron configuration ofIridiumis[Xe] 4f145d76s2. Learn vocabulary, terms, and more with flashcards, games, and other study tools. This problem has been solved! [Xe] 4f14 5d7 6s2. The element is defined by #Z#, the atomic number, which is the number of protons, positively charged, massive nuclear particles. Thechemical symbolfor Xenon isXe. Barium is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Thechemical symbolfor Platinum isPt. Discoverer: Priestley, Joseph and Scheele, Carl Wilhelm, Discoverer: Ramsay, William and Travers, Morris, Discoverer: Ramsay, Sir William and Strutt, John (Lord Rayleigh), Discoverer: Del Rio, Andrs Manuel (1801) and Sefstrm, Nils Gabriel (1830), Discoverer: Lecoq de Boisbaudran, Paul-mile, Discoverer: Ramsay, Sir William and Travers, Morris, Discoverer: Bunsen, Robert Wilhelm and Kirchhoff, Gustav Robert, Discoverer: Perrier, Carlo and Segr, Emilio, Discoverer: Reich, Ferdinand and Richter, Hieronymus, Discoverer: Mller von Reichenstein, Franz Joseph, Discoverer: Ramsay, William and Travers, Morris William, Discoverer: Kirchhoff, Gustav and Bunsen, Robert. This Electron Configuration table gives the Electron Configuration of all the elements of periodic table . (The average of 0-9 would be 4.) [Ar] 3d10 4s2. Configuraciones electronicas. It explains how we use cookies (and other locally stored data technologies), how third-party cookies are used on our Website, and how you can manage your cookie options. It does not store any personal data. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. how to reset dauntless account 2022; diane mercer possession; blade and sorcery quest apk Electron Configuration Chart Electron Configuration of all the elements in table chart. Your element has two more electrons (and two more protons) than Xe. Thechemical symbolfor Erbium isEr. What is the difference between Xe and Ze? Tin is a post-transition metal in group 14 of the periodic table. Lead is widely used as a gamma shield. Balancear Por tanteo. It is one of the least reactive chemical elements and is solid under standard conditions. . By mass, aluminium makes up about 8% of the Earths crust; it is the third most abundant element after oxygen and silicon and the most abundant metal in the crust, though it is less common in the mantle below. In nuclear industry, especially artificial xenon 135 has a tremendous impact on the operation of a nuclear reactor. al. Complete the electron configurations for all elements in the table provided. [Xe] 4f14 5d7 6s2. It is occasionally found in native form as elemental crystals. 7) confirms that the average of 1d10 is 5, which is consistent with a range of 1-10. (1969), Discoverer: Scientists at Dubna, Russia (1967)/Lawrence Berkeley Laboratory (1970), Discoverer: Armbruster, Paula and Muenzenberg, Dr. Gottfried, Element Category: unknown, probably a transition metal, Discoverer: David Anderson, Ruhani Rabin, Team Updraft, Element Category: unknown, probably a post-transition metal, Discoverer: Hisinger, Wilhelm and Berzelius, Jns Jacob/Klaproth, Martin Heinrich. 06/16/2022 . Chlorine is a yellow-green gas at room temperature. In nuclear industry boron is commonly used as a neutron absorber due to the high neutron cross-section of isotope 10B. In fact their absorption cross-sections are the highest among all stable isotopes. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with an atomic mass of 85.4678. Carbon is the 15th most abundant element in the Earths crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. We add the departure electrons, which are now a total of 82. Originally Answered: [Xe] 6s24f5 is the configuration of which element? Thechemical symbolfor Lawrencium isLr. Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily unreactive substances become reactive; for example, an argon atmosphere is used in graphite electric furnaces to prevent the graphite from burning. Chromium is a steely-grey, lustrous, hard and brittle metal4 which takes a high polish, resists tarnishing, and has a high melting point. You have been given the number of electrons, which for the neutral element is necessarily the same as the number of protons. Oxygenis a chemical element withatomic number8which means there are 8 protons and 8 electrons in the atomic structure. Purchases, The Gotham Group (The Maze Runner) and EveryWhere Studios are working on a film based on Sharon Drapers inspiring young adult novel Out of My, Gina is an Italian-born Queen who means Queen. Gina is a name that has been used by parents considering girls baby names. Electron Configuration Chart - Electron Configuration of all the elements in table chart What is the average of 1d10? A noble gas core is the noble gas element symbol enclosed in brackets: [He], [Ne], [Ar], [Kr], [Xe], or [Rn]. What element is Xe 6s2 4f14 5d8? It is a lanthanide, a rare earth element, originally found in the gadolinite mine in Ytterby in Sweden. Thechemical symbolfor Iodine isI. Iodine is the heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at standard conditions that sublimes readily to form a violet gas. The Elements, 3rd edition. Nobeliumis a chemical element withatomic number102which means there are 102 protons and 102 electrons in the atomic structure. Thechemical symbolfor Nickel isNi. Helium is a chemical element with atomic number 2 which means there are 2 protons and 2 electrons in the atomic structure. Therefore, the atom with this configuration must be in the p block of the sixth period of the periodic table, which does indeed hold lead. Ernest Z. Barium has the noble gas configuration [Xe]6s. Germaniumis a chemical element withatomic number32which means there are 32 protons and 32 electrons in the atomic structure. Arsenic. The electronic configuration is there to distract you: Z=54+2+14+10+2=82, and, therefore, the element is LEAD. The element is helium. So, an antimony atom with charge +2 has an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p1.