Question

Give reasons for placing zero group elements in the extreme right of the periodic table.

Answer 1

The elements of the zero group includes the noble gases such as helium, neon, argon, krypton, xenon, and radon. They are placed in a separate group which is at the extreme right of the periodic table due to the unique property exhibited by them which are as follows:

1. All the elements of the zero group have complete octet or duplet(in case of helium), whereas this is incomplete in case of the elements of other groups

2. Due to complete octet or duplet, they form a stable configuration and have no tendency to either give or receive electrons