Single Choice

Atomic masses of elements are usually fractional because:

Athey are mixtures of isotopes
Correct Answer
Bthey contain impurities of other atoms
Cthey are mixtures of isobars
Datomic masses cannot be weighed accurately

Solution

The atomic masses of most elements are fractional as most elements occur as a mixture of isotopes of different masses
Average$$=\cfrac { Total\quad mass\quad of\quad all\quad atoms }{ Number\quad of\quad atoms } $$

SIMILAR QUESTIONS

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