What is the number of atoms contained in one gram-atom of an element?

Nuclear Power Engineering MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Nuclear Power Engineeringchemical-engineering › nuclear-power-engineering
Published
7 Mar 2019
Last updated
28 May 2026

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Explanation

One gram-atom of any element contains Avogadro's number of atoms, which is approximately 6 × 10²³ atoms. The other values are either too small or too large to represent the correct count of atoms in one gram-atom.

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