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5 Cards in this Set

  • Front
  • Back
Protons, Neutrons--->
quarks--->
Fractional charges--->
combine to form integer charges--->
Electron--->
lepton--->
6 types:
3 charges- electrons
3 uncharged- neutrinos
carbon dating
use of c-14 to estimate the age of once living materials

C-14/C-12 - C-13 (ratio is constant in living organism)