First slide

Hydrogen

Question

Hydrogen mainly resembles halogens in the property

Easy

A

it contains one electron only in valency shell
B

it is short of one electron to get inert gas configuration
C

it has higher electronegativity like halogens
D

it exhibits colour like halogens

Solution

Like halogens hydrogen is short of one electron to get inert gas configuration.
$\large H\; 1s^1 \xrightarrow{{+e^-}}\ H^- 1s^2$ Duplet configuration
Eg:- $\large F\; 1s^22s^22p^5 \xrightarrow{{+e^-}}\ F^- 1s^2\underbrace {2s^22p^6}_{8\;electrons\; oclet\; configuration}\$

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