Question

An atom is 10 times heavier than 1 12th of mass of the C-12 carbon atom. The atomic mass is :​

Answer 1

The mass of the atom is $10$ amu.

Explanation:

• The number of neutrons in each element varies. Isotopes are different forms of the same atom that differ solely in the number of neutrons they have. The mass number of an element is determined by the number of protons and neutrons combined: Protons + neutrons equal mass number.

Mass of an atom = $10\cdot\frac{1}{12}\cdot12=10$