Multiple choice

The atomic mass of an element expressed in grams is known as

  1. gram atomic mass

  2. molecular mass

  3. gram molecular mass

  4. none of these
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A Correct answer
Explanation

It is the quantity of an element  whose mass in grams is numerically equal to its atomic mass. In simple terms, atomic mass of an element expressed in grams is the gram atomic mass or gram atom.For example, the atomic mass of oxygen = 16 amu therefore gram atomic mass of oxygen = 16 g. The gram atom should not be confused with the mass of one atom of the element in grams, which is the actual mass of the atom.

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