module 2: 2.2 relative mass

Question 1

define relative isotopic mass

Answer 1

relative isotopic mass is the mass of an isotope relative to 1/12th of the mass of an atom of carbon-12,

Question 2

define relative atomic mass

Answer 2

relative atomic mass is the weighted mean mass of an atoms of an element relative to 1/12th the mass of an atom of carbon-12

Question 3

what does the weighted mean mass take account of

Answer 3

1. the percentage abundance of each isotope

2. the relative isotopic mass of each isotope

Question 4

what does m/z mean

Answer 4

relative mass of ion / relative charge on ion