First slide

Hydrogen

Question

Hydrogen accepts an electron to form inert gas configuration. In this it resembles

Very Easy

A

Halogen
B

Alkali metals
C

Chalcogens
D

Alkaline earth metals

Solution

$\underset{1 s^{1}}{H} + e^{-} \overset{}{\to} \underset{1 s^{2} or {[He]}^{2}}{H^{-}} \underset{{[He]}^{2} 2 s^{2} 2 p^{5}}{F} + e^{-} \overset{}{\to} \underset{{[He]}^{2} 2 s^{2} 2 p^{6} or {[Ne]}^{10}}{F^{-}}$

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