Question

What do you mean by relative atomic mass?​

Answer 1

Explanation:

The carbon-12 atom, is the standard atom against which the masses of other atoms are compared. The relative atomic mass of an element is the average mass of its atoms, compared to 1/12th the mass of a carbon-12 atom. The relative atomic mass, Ar, of an element is calculated from:

the mass numbers of its isotopes

the abundance of these isotopes

Answer 2

It is the ratio of the average mass per atom of an element from a given sample to 1/12 the mass of a carbon-12 atom.

Relative atomic mass, Ar=

( average mass of naturally occurring atoms of an element

_________________________________________

mass of one atom of ¹²C)

)×12