If an atom has 8 protons and 8 neutrons in its nucleus, its atomic number will be 8.
ATOMIC NUMBER:
- The atom of an element consists of three subatomic particles namely: proton, electron and neutron.
- In a neutral atom, the number of protons is the same as the number of electrons. This means that no of electrons = no. of protons of this atom is 8.
- However, the atomic number of an element is its number of protons, which is 8 for this atom.
- Therefore, if an atom has 8 protons and 8 neutrons in its nucleus, its atomic number will be 8.
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