Question

Metals generally have _________ number of electrons in their valence shell.

• A. 1, 2 or 3
• B. 7, 8 or 9
• C. 10, 11 or 12
• D. 20, 30 or 40

Answer 1

The correct option is A 1, 2 or 3

Metals generally have 1, 2 or 3 number of electrons in their valence shell.
For example, $Na$ (alkali metal), $Mg$ (alkaline earth metal) and $Al$ have 1, 2 or 3 number of electrons in their valence shell.