Chapter 9, Problem 99E

Interpretation Introduction

Interpretation:

On the basis of electronic configuration, the difference between the reactivity of bromine and krypton is to be explained.

Concept introduction:

Group 7A or group 17 elements are known as halogens and the general electronic configuration of halogen is $n{s}^{2}n{p}^5$.

Group 8A or group 18 elements are known as noble gases and the general electronic configuration of noble gases is $n{s}^{2}n{p}^6$.