CBSE
Gujarat Board
Haryana Board
Class 10
Class 12
Arrange the following in decreasing order of ionic size:
Mg2+, Â O2-, Â Na+, F-, Â N3-.
Name two ions which are iso-electronic with Ar (Z = 18).
Arrange the following in increasing order of size: Cl-, S2-, Ca2+, Ar
What is the correlation between atomic size and ionisation enthalpy?
Arrange,  l, l-, l+ in increasing order of size.