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Ammonium ion

Marykate5

How does an ammonium ion not have 4 atoms in the same plane?

Reply 1

cpchem

Because it's tetrahedral.

Reply 2

Olibert

Because it has four pairs of electrons surrounding the nitrogen atom.

Which accounts for the tetrahedral shape.

Reply 3

aggar

Marykate5

How does an ammonium ion not have 4 atoms in the same plane?

VSEPR theory(position of minimum repulsion). There are 4 sigma bond pairs around the central nitrogen atom making it tetrahedral (bond angle 109.5deg)

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