Elements with an oxidation number of 2 include which of the following? Check all that apply.<<<
O A. Lithium
B. Magnesium
C. Potassium
D. Calcium

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.