Question

Give the name and electronic configuration of the second alkali metal belonging to the third period.

Answer 1

Alkali metals are Lithium, Sodium Potassium etc..

They are in the first group after Hydrogen gas.

Second Alkali metal is Sodium.

Its electronic configuration is : 1s² 2s² 2p⁶ 3s¹

Answer 2

Answer:

second alkali metal that belong to the third period. = $\huge{Na}$

$Na$ =

${1s}^{2} . \: {2s}^{2} .\: {2p}^{6} . \: {3s}^{1}$