3-9 Recognize exceptions to the octet/duet rule

3-9-1.Which of the following atoms can have more than an octet of valence electrons when it shares electrons with other atoms?
A. S
B. N
C. C
D. H



3-9-2. In which of the following atoms must have an octet when sharing electrons with other atoms?
A. N
B. B
C. P
D. none of these



3-9-ALD. In the molecule HSF₅, which atom(s) violate the octet rule?
A. H
B. S
C. F
D. Both H and S