Nitrogen. Notes on the Electron Configuration of particular elements: Dubnium: Value is a guess based on periodic table trend. Helium is the second element on the periodic table.It is located in period 1 and group 18 or 8A on the righthand side of the table. Elements that are in the same period have chemical properties that are not all that similar. Beryllium. group 15, period 2. In each period (horizontal row), the atomic numbers increase from left to right. Helium. A period is a horizontal row of the periodic table. And elements in group 14 have a charge of -4. Set is organized by the element name as the term, and the location on the PT as the "definition." Physical and Chemical Properties of Group 18 Elements Elements in Group 18 of the Periodic Table are: Helium, Neon, Argon, Krypton, Xenon, Radon These elements are known as noble gases. Explain how the period and group trends in atomic radii are related to electron configuration. Idk which element it is exacly but since its on group 18 its a noble gas so its an element on the farthesr right row. Hope that helped if this is homework you probly have a periodic table so just use that to find it. Have fun! group 1, period 2. Helium's location in the periodic table of the elements. 2. The highest ionization energies in any period are found in Group A. group 1, period 1. 2 (IIA) C. 17 (VIIA) D. 18 (O) 22. Element Helium Neon Argon Krypton Xenon Radon Proton number 2 [ā€¦] Here is the full list of metals in group one (+1 charge): Lithium (Li). Physical properties of noble gases 1. ... f-block is located below the main table Period 1 has only two elements (hydrogen and helium), while periods 2 and 3 have 8 elements. Table shows some physical properties of Group 18 elements. Bohrium: Value is a guess based on periodic table trend. Meitnerium: Value is a guess based on periodic table trend. The periods are numbered 1 through 7 on the left-hand side of the table. This group contains the noble gases, which are the most chemically inert elements on the periodic table.Each He atom has two protons and usually two neutrons and two electrons. In the below periodic table you can see the trend of Valence Electrons. d. the element in period 4, group 18; or the element in period 2, group 16 the element in period 4, group 18 20. Electrons orbit the atom's nucleus in energy levels. 1 (IA) B. group 14, period 2. Todd Helmenstine. group 2, period 2. Sodium (Na). Periodic Table of Elements with Valence Electrons Trends. Seaborgium: Value is a guess based on periodic table trend. 20. Explain why elements in a group have similar properties. For facts, physical properties, chemical properties, structure and atomic properties of the specific element, click on the element symbol in the below periodic table. group 18, period 1. ... period 4 & 5 - 18 elements period 6 - 32 elements: Labeling and Naming: There are currently 3 numbering schemes used in chemistry for the ordering of groups. Consider the first two members of period 3: sodium (Na) and magnesium (Mg). ns 2, ( nāˆ’ 1 ) d 10: the electron is located in 2B group . Its on period 3 so its the 3rd 1 from the top of that row. group 13, period 2. There are seven periods in the periodic table, with each one beginning at the far left. Carbon. Boron. Elements in group 16 have a charge of -2, while all the elements of group 17 are halogens with a charge of -1 each. Hassium: Value is a guess based on periodic table trend. Terms in this set (118) Hydrogen. A new period begins when a new principal energy level begins filling with electrons. 1. Alkali Metals: Group 1 . The elements in group 13 and group 15 form a cation with a -3 charge each. Lithium. If the sub-level ( n āˆ’ 1 ) d contains 6 , 7 , 8 electrons , the element is located in the group 8 , If the electronic configuration of the element ends with : ns 1, ( nāˆ’ 1 ) d 10: the electron is located in 1B group . This table shows the pattern in the periodic table that Mendeleev developed and how the missing elements at that time could be predicted. As the elements of Period 2 are considered in succession from left to right, there is a general decrease in A. ionization energy B. electronegativity C. metallic character D. nonmetallic character 21.