Among the following Ca ,Mg, P and CI the order of increasing atomic radius is

Options

A. `Mg lt Ca lt CI lt P`
B. `Cl lt P lt Mg lt Ca`
C. `P lt Cl lt Ca lt Mg`
D. `CaltMgltPltCl`

Answer

b

Explanation

Along the period , the atomic radius decreases and when we move down the group atomic radius increases
`rArr` The increasing order of atomic radius is `CI lt P lt Mg lt Ca`.