ISOTOPES

-atoms that has the same atomic number but different mass numbers

1. STABLE - Nuclear force can contain the particles together

2. UNSTABLE - Nuclear force cannot contain the particles together

   -RAIDIOACTIVE - undergoes decomposition

   • ALPHA DECAY - Fission, Alpha Particle

   • BETA DECAY - too many proton and neutrons

     • +B - too many neutrons

       - n becomes +p with emit -e

       - release alot of energy

     • -B - too many protons

       - +p becomes n with emit +e

     • POSITRON - medically used: PET SCAN - Positron Emission Tomography

       : MRI - Magnetic resonance Imaging

   • GAMMA DECAY - no +p, e 0n being emitted

     - energy - light - photon