What is the chemical formula for the ionic compound formed when elements of Ca and N react?

1 Answer
Deevona · mrpauller.weebly.com
Apr 25, 2014

Calcium nitride is a red-brown, crystalline solid made up of calcium and nitrogen. Its chemical formula is Ca_3N_2. The ratio will be determined by the charges of the ions.

(3 x Ca2+) = +6
(2x N3-) = -6
The net charge of the compound will be zero.

  • Calcium nitride is formed along with the oxide, CaO, when calcium burns in air. It can be produced by direct reaction of the elements:
  • 3 Ca + N2 → Ca3N2

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Crystal structure - Cubic, cI80

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