MCQ
The modern atomic weight scale is based on
- ✓${C^{12}}$
- B${O^{16}}$
- C${H^1}$
- D${C^{13}}$
✓
Answer
Correct option: A.
${C^{12}}$
a
Modern atomic weight scale is based on $C ^{12}$. The standard unit for expressing the mass of atom is $amu$ (atomic mass unit).
Modern atomic weight scale is based on $C ^{12}$. The standard unit for expressing the mass of atom is $amu$ (atomic mass unit).
It is equal to $1 / 12$ of the mass of an atom of carbon-$12 .$
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