Asolution of ammonia and water contains 1.80×1025 water molecules and 7.00×1024 ammonia molecules. how many total hydrogen atoms are in this solution?

In N H 3 : 3 Hydrogen + 1 Nitrogen atom

In H 2 O : 2 Hydrogen + 1 Oxygen atom

Total Hydrogen atoms: 

 
 

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.