Atomic number is the number of electrons or protons
- Atomic number equals the number of protons or electrons
- Atomic number is equal to number of electrons or protons
- Atomic number is the number of protons and electrons true or false
- The atomic number is the number of protons and electrons in a neutral atom
- Atomic number is the number of protons or electrons present in the nucleus true or false
- Atomic mass atomic number
- Atomic no of all elements
- Chemistry atomic mass number
- Atom made of