Question

The increasing order of the atomic radii of the following elements is :

(a) C (b) O (c) F (d) Cl (e) Br

• A. $\left(a\right)<\left(b\right)<\left(c\right)<\left(d\right)<\left(e\right)$
• B. $\left(d\right)<\left(c\right)<\left(b\right)<\left(a\right)<\left(e\right)$
• C. $\left(c\right)<\left(b\right)<\left(a\right)<\left(d\right)<\left(e\right)$
• D. $\left(b\right)<\left(c\right)<\left(d\right)<\left(a\right)<\left(e\right)$

Answer 1

The correct option is C $\left(c\right)<\left(b\right)<\left(a\right)<\left(d\right)<\left(e\right)$

The increasing order of the atomic radius is $F<O<C<Cl<Br.$
On moving down the group, the atomic radius increases.
On moving from left to right in a period, the atomic radius decreases.
Correct option is (c).