Essential Chemistry for IGCSE - Atoms, Elements And Compounds (Section 5 - No. 8)
What is meant by the term 'atomic number'?
The number of neutrons in an atom
The number of protons in an atom
The total number of protons and neutrons in an atom
The number of electrons in an atom
Explanation
The atomic number is defined as the number of protons in an atom, and it is the same as the number of electrons.
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