Question

An atom is 10 times heavier than $\frac{1}{{12}^{th}}$ of mass of a C-12 . The mass of the atom in amu is:

• A. 10
• B. 120
• C. 1.2
• D. 12

Answer 1

The correct option is A 10

Mass of the atom = $10\times \frac{1}{12}\times 12=10$ Hence mass of the atom =10 amu