Question

write the electronic configuration of the second row element of first group in the periodic table and draw the diagram of the electronic configuration
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Answer 1

Answer:

First group elements =H, Li, Na, K, Rb, Cs, Fr.

In These second row element =Li

Li atomic number =3

Electronic configuration =1s^2 2s^1

Answer 2

periodic table first grp consist H,Li,Na,k,Rb,Cs,Fr,