Which one among the elements generally don't form ionic compound?
N
Li
Na
Cr
As we have learned
Nature of bonding in metals -
The bonding among metal atom cannot be ionic, covalent or van der Waals.
-
Li is a metal but it receives an unusual amount of attraction from their respective nucleus compared to other members of the group. This is because it has its last electron in 2s orbital which is nearest to the nucleus compared to other members. this leads to higher ionisation enthalpy and lesser ionic character.