Question

Explain average atomic mass with example​

Answer 1

Answer:

The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance (the decimal associated with percent of atoms of that element that are of a given isotope). The atomic number of chlorine is 17 (it has 17 protons in its nucleus).

Answer 2

Average atomic mass takes into account the isotopic abundance (relative to each other found in the Earth). For example, the most abundant isotope of carbon is carbon-12, which has a relative abundance of 98.89%. The atomic masses of carbon-13 and carbon-14 are 13.003 amu and 14.003 amu respectively.