Atomic mass number is equal to
- Atomic mass number element is equal to
- The atomic mass number of an atom is equal to
- The atomic mass number is equal to the sum of the
- The atomic mass number is equal to the plus the
- Atomic mass minus atomic number is equal to
- Atomic mass is equal to number of protons
- Atomic mass is equal to number of electrons
- Atomic mass is equal to the sum of
- Atomic mass is equal to proton + neutron
- Atomic mass is equal to which of the following