Relative Mass

Question 1

What does relative atomic mass mean

Answer 1

The weighted mean mass of an atom of an element compare to 1/12 of the mass f an atom of carbon 12

Question 2

What is relative atomic mass the average of

Answer 2

The average of all the relative isotopic masses so n it’s not usually a whole number

Question 3

What does relative isotopic mass mean and what type of number is it

Answer 3

Relative isotopic mass is the mass of an atom compared to 1/12 of an atom of carbon 12
Relative isotopic mass is usually a whole number