Question

The oxide of an element whose electronic configuration is $1s^2,2s^2,2p^6,3s^1$ is

• A. neutral
• B. amphoteric
• C. basic
• D. acidic

Answer 1

Answer: (C)

$Na(11):1s^2,2s^{2}2p^6,3s^1$ It is an alkali metal. Alkali metal oxides are basic in nature.