The combination of two atomic orbitals results in the formation of _________ molecular orbitals. A) 1 B) 2 C) 3 D) 4 E) 0 The sp^3d^2 atomic hybrid orbital set accommodates _________ electron domains. A) 2 B)3 C) 4 D) 5 E) 6 The sp^2 atomic hybrid orbital set accommodates ______ electron domains. A) 2 B)3 C) 4 D) 5 E) 6 The hybridizations of nitrogen in NF_3 and NH_3 are _______and _______, respectively. A) sp^2, sp^2 B) sp, sp^3 C) sp^3, sp D) sp^3, sp^3 E) sp^2, sp^3 The hybridizations of bromine in BrF_5 and of arsenic in AsF_5 are ______ and ________, respectively. A) sp^3, sp^3d B) sp^3d, sp^3d^2 C) sp^3d^2, sp^3 D) sp^3d^2, sp^3d E) sp^3d^2, sp^3d^2 A typical double bond _____. A) is stronger and shorter than a single bond B) consists of one sigma bond and one pi bond C) imparts rigidity to a molecule D) consists of two shared electron pairs E) All of the above answers are correct.