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Question

The electronic configuration of a hydride ion (H) is like the electronic configuration of the atom of which element?  [1]

OR

Draw the Lewis dot diagram of H2 molecule. [1]

WBBSE Class X Physical Science Ionic and Covalent Bond 01 Mark 2022

Answer

The hydride ion (H⁻) has gained an extra electron, giving it an electronic configuration similar to that of helium (He), which is 2.

OR

The Lewis dot diagram for the H2 molecule is represented as follows:

H : H

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