Question

atomic mass define. In detail​

Answer 1

Answer:

An atomic mass (symbol: ma) is the mass of a single atom of a chemical element. It includes the masses of the 3 subatomic particles that make up an atom: protons, neutrons and electrons. Atomic mass can be expressed in grams. 1 atomic mass unit is defined as 1/12 of the mass of a single carbon-12 atom.