The activation energy for the gas phase decomposition of isobutyl bromide is 211 kJ. (CH3)2CHCH2Br(CH3)2C=CH2 + HBr
The rate constant at 686 K is 1.04×10-3 /s. The rate constant will be 1.24×10-2 /s at __kj

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.

The answer is letter c