Question

draw electronic configuration expnession of element 7,11,15,18


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Answer 1

7th element is nitrogen -   Electron configuration  = 1s2 2s2 2p3.

11th element is sodium - electronic configuration =  1s2 2s2  2p6 3s1 .

15th element is phosphorus - electronic configuration = 1s2 2s2 2p6 3s2 3p3 .

18th element is argon - electronic configuration = 1s2 2s2 2p6 3s2 3p6.

In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals.[1] For example, the electron configuration of the neon atom is 1s2 2s2 2p6 etc....