The reading for this unit includes the section on “relative masses of atoms” ( Link below) which talks about the realization in Dalton’s time (1800s) that relative masses could be determined by comparing “combining weights”. I am struggling to reach a clear understanding of this section and so I have written the questions below hoping someone can clear my confusion.
Was the “relative mass” they mention simply a way of expressing how much heavier or lighter an atom of an element is than the atoms of other elements. i.e. H has 1 and O is 7 ergo O atoms are heavier than H atoms.
If not, what do they mean by relative mass?
Any help is greatly appreciated.