other govt exam FCI Assistant Grade 3 (AG III) Phase I & II Mock Test General Science Chemistry Basic Concepts of Chemistry
Arrange the elements in increasing order of atomic radius Na, Rb, K, Mg -
1
K < Na < Mg < Rb
2
Mg < Na < K < Rb
3
Rb < K < Mg < Na
4
Na < K < Mg < Rb
5
Other than those given as options