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Calcium is in the s-block with the electron configuration of (Ar)4s². It's group is group 2 (calcium earth metal ) in period 4 of the periodic table
The inert gas in Period 2 is the element Neon(Ne). Its electron configuration is 2-8.
In the periodic table of Mendeleev uranium is in the period 7 and actinides group.
Electron configuration of rubidium is 1s2, 2s2, 2p6, 3s2, 3p6, 3d10, 4s2,4p6, 5s1 Electrons per shell 2,8,18,8,1 Electron configuration is also represented by [Kr], 5s1. Atomic No. 37, It is Group 1 Alkali metals Period 5 It is an s-block element.
The element calcium, or Ca, is located in group 2, period 4 of the periodic table. Therefore, its electron configuration is 1s2 2s2 2p6 3s2 3p6 4s2. This can also be written as [Ar] 4s2, because the beginning of that electron configuration is the same as argon's. The 42 you mentioned in your question is referring to a specific isotope of calcium and has nothing to with the electron configuration.
the element belongs to 4th period, 9th group, it is a d block element. the element is cobalt
Calcium is in the s-block with the electron configuration of (Ar)4s². It's group is group 2 (calcium earth metal ) in period 4 of the periodic table
Calcium is in the s-block with the electron configuration of (Ar)4s². It's group is group 2 (calcium earth metal ) in period 4 of the Periodic Table
The electronic configuration of sodium is [Ne]3s1. Sodium has one valence electron. And it belongs to group 1. The valence electron is in 3s orbitals and it tells that sodium is a s-block element and is in period 3.
The electron configuration of sodium is: [Ne]3s1.
Technicium (Tc) can be found in period 5 group VII of the periodic table. It is a transition metal and so is a d-block element. Thus the electron configuration is [Kr]4d5 5s2
It is in group 17.
Electron Configuration
Radon!
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The inert gas in Period 2 is the element Neon(Ne). Its electron configuration is 2-8.
S [Ne] 3s2 3p4