The atomic number is equal to the number of blank
- The atomic number is always equal to the number of blank in an atom
- The atomic number is equal to the number of blank in the nucleus
- The atomic number of an atom is equal to the number of blank an atom contains
- The atomic number of an element is equal to the number of blank in its nucleus
- The atomic number of an element is equal to the number of blank
- The atomic number is equal to the number of blank in the nucleus of each atom of an element
- The atomic mass of an element is equal to the number of blank
- The number of blank is equal to the atomic number of each element in the periodic table
- The atomic number for an atom of a specific element is equal to
- The atomic number is the same as the number of these
- The atomic number is the number of ____ in an atom
- The atomic number of an element refers to the number of