The radiochemist, Will I. Glow, studied thorium-232 and found that 2.82 × 10–7 moles emitted 8.42 × 106 α particles in one year. What is the decay constant for thorium-232?

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.

They are all decomposition reactions.

It’s b. mass i searched it up