Group Valence Electrons
N 5A 2 × 5 e– = 10 e–
F 7A 4 × 7 e– = 28 e–
Geometry around N: 1 lone pair + 3 atoms = 4 groups
AX3E1 → Trigonal Pyramidal
▪ 1 s orbital + 3 p orbitals = 4 orbitals (4 groups)
In addition to NF3, two other fluoro derivatives of nitrogen are known: N2F4 and N2F2. What shapes do you predict for these two molecules? What is the hybridization for the nitrogen in each molecule?
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