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28 April, 17:34

The quantity equal to one mole is defined using which isotope

a. carbon 12

b. carbon 13

c. nitrogen 14

d. oxygen 16

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Answers (1)
  1. 28 April, 20:06
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    A.

    Explanation:

    There are several reasons that Carbon-12 was chosen as the standard for determining the relative mass of other atoms.

    Its abundance on earth Carbon-12 is a very stable isotope atom Its has the same number of neutrons and protons hence more ideal to use for a precise calculation of amu (atomic mass unit) -

    The mass of an atom are based on the ¹/12 mass of Carbon-12.
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