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secondary 4 | E Maths
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Hi can someone please explain to me why nitrogen has 2 lone pairs here?
I thought it only has five valence electrons?
Date Posted: 2 years ago
Views: 399
The extra electron comes from an external source, hence it contains a -1 charge. This is why there’s a general rule in chemistry that ions exists in pairs (ie. Cations and anions). NH2- in the anion, while the cation is the chemical species that has donated the extra electron to the nitrogen forming a -1 charge.
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Hi, R. I hope it helps.
Date Posted:
2 years ago
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