Chemistry · Structure of the Atom

Which of the following statements is INCORRECT regarding mass number?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1Protium and deuterium have the same mass number.✓
2Isobars have the same mass number.
3Mass number is equal to the sum of the number of neutrons and number of protons.
4The number of nucleons is the same as the mass number.

Correct answer

Protium and deuterium have the same mass number.

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Which of the following statements is INCORRECT regarding mass number?

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Which of the following statements is INCORRECT regarding mass number?

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