what are the favored geometrical arrangements for ABn molecules for which the A atom has 2, 3, 4, 5 and 6 pairs of electrons in in its valence shell?'

3 answers

I don't understand the problem. Can you give an example or two for n and A.
2-Linear
3-Trigonal Planar
4-Tetrahedral
5-Trigonal Bipyramidal
6-Octahedral

This is a chart that can be found online or science book
l don't really understand the concept of naming electrons by pairs here. Does the mentioning of 6 pairs means 12 valence electrons? Seems nonsense

l would understand if they said that there an A atom has 2, 3, 4, 5 and 6 ELECTRONS (not pairs).