In what directions must energy be added to cause the indicated phase change? a) solid to gas, gas to liquid, liquid to solid b) solid to liquid, gas to liquid, solid to gas c) solid to liquid, liquid to gas, gas to solid d) solid to liquid, liquid to gas, solid to gas

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.

Electrical charges of ionic bonds