First slide

Hydrogen

Question

Hydrogen does not show metallic character because of

Easy

A

very high ionization energy
B

higher electronegativity than metals in general
C

only one electron in its atom
D

diatomic nature of its molecule

Solution

Metals have low ionization energy. ionization energy of H-atom is 1312 kJ ${mol}^{- 1}$ while that of Li, it is 520 kJ ${mol}^{- 1}$ only.

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