The atomic number z is the number of
- The atomic number z of an element is the number of
- The atomic number abbreviated z is the number of
- The atomic number z represents the number of
- The atomic number z is the number of found in the nucleus of an atom
- The atomic number z of an atom equals the number of
- The atomic number z of an atom equals the number of protons in its nucleus
- The atomic number z of an atom indicates
- The atomic number represented by z is the number of blank in the nucleus
- The mass number a atomic number z and the number of neutrons and are related as
- The atomic number z is equal to the number of which particles in the nucleus