# Question #f80e4

Sep 26, 2017

The nitride ion, ${\text{N}}^{3 -}$ has 7 protons and 10 electrons.

#### Explanation:

The formula of the nitride ion, ${\text{N}}^{3 -} ,$ indicates that a nitrogen atom has gained 3 additional electrons.

Nitrogen has atomic number 7, which means its atoms have 7 protons in their nuclei. In a neutral nitrogen atom, there would also be 7 electrons. But since the nitride ion has a ${3}^{-}$ charge, it has gained an additional 3 electrons.

The nitride ion has 7 protons and 10 electrons.

The nitride ion consists of 7 protons and 10 electrons.

#### Explanation:

Nitrogen has an atomic number of 7. The atomic number tells you how many protons an atom or ion has.

The nitride ion has a charge of -3. The charge is the result of an addition of three electrons which complete the valence shell of the particle.

Charge determination

+7 = charge from seven protons each with a +1 charge
-10 = charge from 10 electrons each with a -1 charge
-3 = net charge of a nitride ion

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