Question

What is the lewis structure of `N(CH_3)_3`?

Answer 1

Nitrogen has 5 valence electrons, three of which are involved in bonding.

Explanation:

And carbon has 4 valence electrons all of which are involved in bonding. There are 5 valence electrons on nitrogen; less the 3 bonding electrons, this leaves 2 electrons as a stereochemically active, nitrogen-centred lone pair. The electronic structure around nitrogen is tetrahedral; the molecular structure around nitrogen is trigonal pyramidal, `/_H-N-H~=105^@`.