The structure of the atom

The structure of the atom

1. Top number = Atomic mass number = number of protons

   • Bottom number= Atomic Number= number of protons

2. The Number of neutrons is found by - the atomic number from the atomic number from the atomic mass

3. Atomic number = number of protons. It is also = to the number of electrons in a neutral atom

4. Atomic number

   • Mass number
     • Number of protons
       • Number of electrons

5. Number of neutrons

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