Isotopes
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What are isotopes?
Isotopes are atoms with the same atomic number and a different mass number. Isotopes are atoms with the same number of protons but a different number of neutrons .
Why is the mass given in the data booklet called relative atomic mass?
Elements are made up of isotopes so the mass given in the data booklet is called the relative atomic mass (RAM).
How is the relative atomic mass calculated?
The relative atomic mass is the average mass of the isotopes in a sample of an element.
What is the instrument called the mass spectrometer used for?
Scientists use a mass spectrometer to find: The mass of isotopes present The mass of each isotope The relative proportion of each isotope as a percentage.
What does m/z stand for?
The mass of each isotope