O-LevelChemistryAtomic Structure5070/12 · May/June 2023 · Q81 Mark
Which statements about relative atomic mass and relative molecular mass are correct? 1 The mass of the different isotopes does not affect relative atomic masses. 2 Only covalent compounds have a relative molecular mass. 3 Relative atomic masses are compared to ½ of the mass of one atom of ¹²C.
A1 and 2 only
B1 and 3 only
C2 and 3 only
D1, 2 and 3
✓ Correct answer
C: 2 and 3 only
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