Among N,O and F, which posses highest electronegativity?

Which halogen has the highest electron gain enthalpy and which halogen has the highest Electronegativity?

What is electronegativity ? Explain why halogens possess highest electronegativity.

Among s- and p- block element , which possess higher metalic character.?

Arrange the following in the increasing order (any three) : Al, Si, F, Cl (Electronegativity)

Assign the type of force exist in the following compounds. Which of these has the highest boiling point? CH_3CH_2CHO, CH_3CH_2CH_2OH, CH_3-O-C_2H_5,CH_3CH_2CH_3 .

In the first transition series of elements, which element shows highest oxidation state?

Give reason: among transition metals, the highest oxidation state is exhibited in oxoanion of a metal.