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Here are the answers to Exceeding Octet Rule and Resonance Species Homework handout including Molecular Geometry and Hybridization.
1) NO31- : Total #ve: 24ve, N is central atom and 0 LP, 1 double bond, 2 single bond, Trigonal planar, 120°, sp2 hybridized.
2) As1F5 Total # ve: 40ve, As is central atom no LP, 5 single bonds, Trigonal bipyramidal, 90°, 120°, dsp3 hybridized
3) CO32- : Total #ve: 24ve, C is central atom and 0 LP, 1 double bond, 2 single bond, Trigonal planar, 120°, sp2 hybridized.
4) Se1Br6 Total # ve: 48ve, Se is central atom no LP, 6 single bonds, Octahedral, 90°, 90°, d2sp3 hybridized