In order for a carbon to be balanced it must have how many additional electrons added to its outermost shell

4 because it has 4 valence electrons aand it needs 4 electrons

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.