Question

The radii F, F, O and O2– are in the order of    

Solution

Correct option is

O2– > F > O > F

Atomic radius decreases on going from left to right in a period. Thus, size of O > F. As O2– and F are isoelectronic, therefore, size of O2– > F –.

SIMILAR QUESTIONS

Q1

The correct order of reactivity of halogens is 

Q2

The correct order of increasing oxidizing power is

Q3

Which element of second period forms most acidic oxide?

Q4

Which of the following oxides is most basic? 

Q5

An element X which occurs in the first short period has an outer electronic structure s2p1. What are the formula and acid-base character of its oxides?

Q6

The pair of amphoteric hydroxides is

Q7

The elements XYZ and T have the indicated electronic configurations. Starting with the innermost shell, which is the most metallic element?   

Q8

The statement that is the true for the long form of the Periodic Table is   

Q9

Which has the smallest size?

Q10

The correct order of radii is