Question

The element whose electronic configuration is $1s^2,2s^2,2p^6,3s^2$ is a/an?

• A. Metal
• B. Non - metal
• C. Inert gas
• D. Non metal

Answer 1

The correct option is A

Metal

Metals have 1 to 3 electrons in their outermost shell.

Alkaline earth metals have $n{s}^2$ configuration in the outermost shell.