The mass number of an atom is?

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Chemistry JAMB 1981

The mass number of an atom is?

  • the number of electrons in the atom
  • the number of protons in the nucleus of the atom
  • the number of neutrons in the nucleus of the atom
  • the sum of numbers of electrons and protons inthe atom
  • the sum of numbers of proton and neutrons in the nucleus of the atom checkmark

The correct answer is: E

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