Some Basic Concepts of Chemistry 1 Question 18
39. The modern atomic mass unit is based on the mass of
$(1980,1 \mathrm{M})$
Integer Answer Type Questions
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Solution:
- Carbon-12 isotope. According to modern atomic mass unit, one atomic mass unit (amu) is defined as one-twelfth of mass of an atom of $\mathrm{C}-12$ isotope, i.e.
$1 \mathrm{amu}(\mathrm{u})=\frac{1}{12} \times$ weight of an atom of C-12 isotope.
