How do you write a Lewis structure for CH_3NH_3^+?

1 Answer
anor277
Jan 2, 2017

Count up the valence electrons............

Explanation:

And that is 6 from the hydrogens, 5 from the nitrogen, and 4 from the carbon, i.e. 15, from which subtract 1 to account for the positive charge on the ammonium centre. We are left with 14 electrons, or 7 electron pairs, to distibute across the central carbon and nitrogen centres.

H_3C-N^(+)H_3. Here, there are 3xxC-H bonds, 1xxC-N bond, and 3xxN-H bonds, i.e. 7 electron pairs AS REQUIRED.

Can you do same for CH_4 and NH_4^+?

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