On the basis of electron affinity, comment on the resemblance of hydro

1.	On the basis of electron affinity, comment on the resemblance of hydrogen with halogens.
Answer» Halogens have electronic configuration `ns^(2)np^(5)`. So, they have strong tendency to gain one electron to attain stable nearest noble gas configuration. Similarly, hydrogen with `1s^(2)` electronic configuration has a tendency to gain one electron and form `H^(-)` ion and attain helium gas configuration.

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On the basis of electron affinity, comment on the resemblance of hydrogen with halogens.

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