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Frequently Asked Questions

What is the Lewis Structure of NH2?

Lewis structure of NH2- ion contains two single bonds between the Nitrogen (N) atom and each Hydrogen (H) atom. The Nitrogen atom (N) is at the center and it is surrounded by 2 Hydrogen atoms (H). The Nitrogen atom has 2 lone pairs and it also has -1 formal charge.

What is the bond angle for NH2-?

That’s why NH2- has a bond angle of 104.5°, not 107° or 109.5°. Ammonia (NH3) which has only 1 pair of non-bonding lone pairs electrons which have comparatively lower repulsive force and bond angle is around 107°.

What is the molecular geometry for NH2-?

So, NH2- has a bent (angular) molecular geometry. From the above Lewis dot structure, NH2- has four regions of electron density around the central nitrogen atom i.e. 2 bond pairs and 2 lone pairs. These electrons are arranged in a tetrahedral shape with a structure like H-N-H.

What is the hybridization for NH2-?

NH2- has an sp3 hybridization type. The central Nitrogen atom has four regions which are responsible for identifying hybridization. Here N has two unbonded electrons pairs and two sigma bonds. And due to these four regions around the central nitrogen atom, NH2- has sp3 hybridization. In NH2-, there are three 2p orbitals and one 2s orbital.

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