Question

among the elements calcium, magnesium, Phosphorus and chlorine the order of increasing atomic radius is?

Answer 1

Calcium-194 pm

Magnesium-145 pm

Phosphorus-98 pm

Chlorine-79 pm

increasing order- Cl<P<Mg<Ca

Answer 2

second one because cl has small radius as it's a halogen while phosphorus has atomic no. 15 and Ca and Mg are in same group but Ca is of larger radius than Mg