What do the different colour heart emojis mean? Does a red , yellow , green , blue and violet emoji all mean the same thing according to you? Solitude4
1 The relative atomic mass, or atomic weight, of an element is the weighted average of the masses of the isotopes in the naturally occurring element relative to the mass of an atom of the carbon-12 isotope which is taken to be exactly 12.
total mass of the protons and neutrons in an atom, measured in atomic mass units how is the atomic mass of an atom calculated by multiplying the mass of each isotope by its natural abundance, expressed as a decimal, and then add the products periodic table