NSSCO Chemistry (6117) Practice Questions - Namibia Senior Secondary Certificate Ordinary Level Chemistry (Syllabus 6117) Exam

Isotopes of the same element have:

The same mass number but different atomic numbers The same number of protons but different numbers of neutrons The same number of neutrons but different numbers of protons Different numbers of electrons in a full outer shell

Correct Answer:

The same number of protons but different numbers of neutrons

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