Ncert Exercises & Solutions

Hydrogen resembles halogens in many respects for which several factors are responsible. Of the following factors which one is most important in this respect?

1.	Its tendency to lose an electron to form a cation.
2.	Its tendency to gain a single electron in its valence shell to attain stable electronic configuration.
3.	Its low negative electron enthalpy value.
4.	Its small size.

Hint: Hydrogen can form a hydride ion same as halogen from a halide ion.

Hydrogen resembles halogens in many respects for which several factors are responsible. The most important is hydrogen-like halogens accept an electron readily to achieve the nearest inert gas configuration.

In spite of the fact that hydrogen, to a certain extent resembles both alkali metals and halogens.

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