What group is sodium in?

1 Answer
Jun 1, 2018

1^(st) group

Explanation:

Sodium is in 1st group in modern periodic table.
Na(11)= 1s^2, 2s^2, 2p^6, 3s^1
Last electron enters into s subshell states that Na belongs to S-block.

And, Na has valency of 1 electron so, it belongs to 1^(st) group.

In addition to it, Na is a alkali metal. Alkali metals belongs to 1^(st) group.