Nuclear Chemistry

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Author:
JustDoughnut
ID:
220004
Filename:
Nuclear Chemistry
Updated:
2013-05-16 20:33:14
Tags:
Nuclear Chemistry
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Description:
Transmutations
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  1. Nuclear Chemistry
    the study of changes that occur in the nucleus of atoms
  2. Transmutation
    the changing of one atom to another by nuclear changes
  3. Nuclear Transmutation
    • one nucleus changes to another
    • can be shown by nuclear equations
    • can release, absorb, absorb and release,(particles) split, and join (other nuclei)
  4. Alpha Particle
    • like a helium nucleus
    • mass of 4 amu
    • +2 charge
    • lowest penetrating power
    • stopped by paper
  5. Beta Partcle
    • like high speed electron
    • mass of 0
    • -1 charge
  6. Positron
    • known as electron catcher
    • mass 0 
    • +1 charge
  7. Gamma Radiation
    • like high energy x-ray
    • mass 0
    • 0 charge
    • highest penetrating power
    • only stopped by lead block
  8. neutron
    • mass 1
    • 0 charge
  9. Accelerator
    • device that moves charged particles to a high speed
    • only accelerates alpha; beta; positron
  10. Separating particles that are released
    electric or magnetic field can be used to separate particles and radiations that are released from a radioactive source during nuclear decays
  11. Electric Field
    • has + and - charged plates
    • - particles attracted to + plates
    • uncharged are unaffected and go straight through
    • + particles attracted to - plates
  12. Stability
    • determined by ratio of neutrons to protons
    • 1:1 ratio is most stable 
    • lower ratio = more stable
    • elements <83 all stable
    • 83+ are unstable

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