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How many single covalent bonds can nitrogen form?

Answer 1

There are #4# such bonds in the ammonium ion, #NH_4^+#

Neutral ammonia has #3# #xx# #N-H# bonds, and also has a nitrogen-centred lone pair. This lone pair can form a donative bond to hydrogen,for instance:

#NH_3(aq) + H_2O rarr NH_4^+ + HO^-#.

Quaternary ammonium salts, #NR_4^+#, are also known. In both instances, there are 6 electrons formally associated with the nitrogen centre rather than 7, and thus it bears a formal positive charge in the representation.

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Answer 2

Isaac Aronson

Nitrogen can form three single covalent bonds.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.