A) \[_{1}^{1}H\]
B) \[_{6}^{12}C\]
C) \[_{6}^{14}C\]
D) \[_{8}^{14}O\]
Correct Answer: B
Solution :
Atomic mass is a number that indicates as how many times an atom of an element is heavier as compared with 1/12 of the mass of an atom of carbon-12\[(_{6}^{12}C)\]. Hence, standard for atomic mass is \[_{6}^{12}C\].
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