Question

Write electronic configurations of the Sodium.

Answer 1

Sodium is a chemical element with the symbol $Na$ and the atomic number $11$ It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged ion—the $Na⁺$cation

The electronic configuration of sodium is given as $1s^{2}2s^{2}2p^{6}3s^1$