Question

which of the following is not
alkali metal? *
Na
O
Ca
OK

Answer 1

Answer:

O

Explanation:

oxygen is not a alkali metal

pls mark it as brainlist

Answer 2

Answer:

Ca,O

Explanation:All group I elements are called alkali metals.Since, Na belong to group i so it is an alkali metal.But Ca and O belongs to Group II so they are not alkali metals