Atoms, Compounds and Isotopes

Atoms, Compounds and Isotopes

1. Atoms

   • Mass Number
     • Total number of protons and neutrons
     • Top number
   • Atomic Number
     • Number of protons
     • Bottom number
       • prOTon bOTtom
   • Relative Mass
     • Proton
       • 1
     • Electron
       • Very small
     • Neutron
       • 1

2. Compounds

   • Atoms of two or more elements chemically bonded together
   • Difficult to separate the elements

3. Isotopes

   • Isotopes are: different atomic forms of the same element, which have the same number of protons but a different number of neutrons
     • Isotopes have...
       • Same
         • Number of protons
         • Atomic number
       • Different
         • Number of neutrons
         • Mass numbers