Answer
(a) 1 covalent bond.
(b) 4 covalent bonds.
(c) 1 covalent bond.
(d) 2 covalent bonds.
(e) 3 covalent bonds.
(f) 2 covalent bonds.
Work Step by Step
(a) F: 7 valence electrons:
Number of bonds = 8 - 7 = 1
(b) Si: 4 valence electrons:
Number of bons = 8 - 4 = 4
(c) Br: 7 valence electrons:
Number of bonds = 8 - 7 = 1
(d) O: 6 valence electrons:
Number of bons = 8 - 6 = 2
(e) P: 5 valence electrons:
Number of bons = 8 - 5 = 3
(f) S: 6 valence electrons:
Number of bons = 8 - 6 = 2
