Asked by Mai

what are the favored geometrical arrangements for abn molecules which the A atom has 2, 3, 4, 5 and 6 pairs of electrons in its valence shell?
Answered by DrBob222

what's abn mean?
Answered by Mai
its the ABn molecules, which is related to VSPER
Answered by DrBob222
I guess A is one atom, B is another atom, what's n. Perhaps the number of B atoms? Or is that supposed to stand for the number of unpaired electrons?
Answered by Alex
2 is linear. 3 is trigonal. 4 is tetrahedral. 5 is trigonal bipyramidal. And 6 is octahedral.
Answered by Alex
A is the central atom and B is an atom bonded to the central atom. n is the number of B atoms.
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