The bond between atoms of two elements with atomic number 37 and 53 respectively is :

The bond between atoms of two elements of atomic number 37 and 53 is :

Elements with atomic numbers 9, 17, 35, 53 are collectively known as

The element with atomic number 9,17,35,53,85 are all

The elements with atomic numbers 9, 17, 35, 53, 85 are all

The bond between two atoms of nitrogen is a ……….. bond.

The characteristics of elements X, Y and Z with atomic numbers, respectively, 33, 53 and 83 are:

Three elements X , Y and Z have atomic numbers 19 , 37 and 55 respectively . Then the correct statements (s) is / are

Three elements X , Y and Z have atomic numbers 19 , 37 and 55 respectively . Then the correct statement (s) is / are