Among IIA group elements ,the elements with highest and lowert E.N values are

____is IIA group element.

IIIA group element with highest density is

IIIA group element with highest density is

IIIA group element with highest density is

III A group element with highest density is

In Group 18, the element with highest electron gain enthalpy is

Among the elements given below the element with highest electronegativity is

Among the elements of group 14, the element having highest and that with lowest melting point are respectively.

Among the following, the element with highest ionisation potential is

The element with highest value of ionisation potential is