Atomic structure 2

Atomic structure 2

1. Relative atomic mass

   • Tells us the number of protons and neutrons in an atom

2. Isotopes

   • Isotopes are atoms of an element which have the same number of protons but a different number of neutrons
   • To work out the mass of an isotope atom

3. Relative Atomic Mass, Ar

   • This is the atomic mass of an element compared with the mass of an 12C atom. An atom of 12C weighs 12 (units)

4. Periodic Table

   • • Enter text here

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