Question

How does hydrogen resemble halogens?

Answer 1

The resemblance of Hydrogen with halogens:

• Hydrogen has one electron in the valence shell.
• So, hydrogen can also accept one electron to attain inert gas electronic configuration.
• Therefore, hydrogen atoms show electronegative nature which resembles the group VIIA of halogens.

The chemical reaction is as follows:

$$\begin{gathered} \mathrm{H}+{\mathrm{e}}^{-}\to {\mathrm{H}}^{+}(\mathrm{Hydride}\mathrm{ion}) \\ \mathrm{Cl}+{\mathrm{e}}^{-}\to {\mathrm{Cl}}^{-}(\mathrm{Chloride}\mathrm{ion}) \end{gathered}$$