Question

what is the difference between atomic mass and atomic mass unit​

Answer 1

Explanation:

Atomic mass is the sum of protons and neutron in an element .

Its unit is amu but now it is u.

For Example,

Atomic mass of Oxygen is P+N = 8+8 = 16u.

Atomic mass units are described as a unit of measurement for atoms and molecules, just like the mass of a person may be expressed in pounds or kilograms.

For Example, Hydrogen is the first element on the periodic table and has an atomic number of 1 and an atomic mass of 1.00794 amu, or atomic mass units.