mass formula
the Atomic Mass
the Atomic Mass
the atomic mass
Average atomic mass I think.
The average atomic mass is weighted by the most common isotopes and their relative abundance.
The atomic mass of an element is the average of its isotopes, weighted by abundance in nature.
The atomic mass of an element is the average of its isotopes, weighted by abundance in nature.
Atomic mass is the number of protons and neutrons in an atom.
((16x40) +(18x60))/100 = 17.2
The atomic mass is an average because most elements consist of a mixture of isotopes.
Atomic mass is the average mass of all isotopes of a given element.
All of the isotopes in an element's atomic masses divided by the amount of isotopes there are is the weighted-average mass of the mixture of an elements isotopes.