S [Ne] 3s2 3p4
An element with the electron configuration Ne3s^23p^5 is in period 3 of the periodic table. The electron configuration indicates that the element has 3 energy levels, with the last electron being in the 3p subshell.
the element belongs to 4th period, 9th group, it is a d block element. the element is cobalt
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This element belongs to the period 6 and group 18, known as the noble gases. The electron configuration 6s2 6p6 indicates that the outermost energy level is fully occupied, making the element stable and inert.
This group has the electron configuration of sulfur. The element sulfur has 16 electrons, and its electron configuration is 1s2 2s2 2p6 3s2 3p4.
The inert gas in Period 2 is the element Neon(Ne). Its electron configuration is 2-8.
Group 1- as the configuration is ns1. The Kr in the question indicates the Krypton core. The 5s1 is the clue - the period number is the same as the principal quantum number (in this case 5) so the element is in group 1 and period 5 - so it is rubidium.
The group 2 element in period 6 would be radium. Its outer electron configuration would be 7s2.
This electron configuration belongs to the element chromium, which has the atomic number 24. Chromium is a transition metal element.
Chlorine is the group 17, period 3 chemical element. Therefore, its electron configuration is 1s2 2s2 2p6 3s2 3p5. Another way to write this is [Ne] 3s2 3p5 since the beginning of the electron configuration is the same as neon's.
The electron configuration 1s22s22p63s23p64s23d7 corresponds to the element Manganese (Mn), which is in Group 7 (previously known as "VIIIB" or "8") and Period 4 of the periodic table.
Group 1- as the configuration is ns1. The Kr in the question indicates the Krypton core. The 5s1 is the clue - the period number is the same as the principal quantum number (in this case 5) so the element is in group 1 and period 5 - so it is rubidium.