Chemistry -mass spectrometer and isotopes and atoms

This is edexcell Aevel

What does the term R.A.M mean ?

the weighted mean mass of an atom of an element that compared to 1/12 of the massof carbon-12

What does the term R.I.M?

The mass of an atom of an isotope that is compared to the mass of 1/12 of carbon -12

What does a mass spectrometer do ?

It creates positive ions from a neutral sample

Separates ions according to their mass/charge ratio

It measures the relative abundance of ions and their masses

What is the definition of empirical formula?

The simplistic whole number ratio of atoms in a compound.

What does the term isotope mean.

The atoms of the same element but with different masses.