i. The nuclides with even Z and even N constitute 85% of earth crust.

Question

State true or false. Correct the false statements. 

i. The nuclides with even Z and even N constitute 85% of earth crust. 

ii. Nuclides with either ‘Z’ or ‘N’ odd are more stable than those having even number of both ‘Z’ and ‘N’ 

iii. The number of nuclides with odd number of ‘Z’ and odd number of ‘N’ are only four.

Answer 1

i. True 

ii. False 

Nuclides with either ‘Z’ or ‘N’ odd are less stable than nuclides having even number of both ‘Z’ and ‘N’.

iii. True