Atomic radius (±) of Al, Si, N and F respectively is | Chemistry | SolveeIt | Solveeit

Today, August 18

Question

Atomic radius (pm) of Al, Si, N and F respectively is

A

117, 143, 64, 74

B

143, 117, 74, 64

C

143, 47, 64, 74

D

64, 74, 117, 143

Answer

143, 117, 74, 64

Explanation

Solution

$Al$ , Si belong to 3rd period of periodic table while $N$ , and fluorine to second period. The size of element decreases from left to right in a period hence the order of size is
$Al > Si > N > F$