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Regents Chem - Nuclear

Natural decay, radioactivity, or transmutation one reactant mutates into 2 or more products.
Artificial transmutation or bombardment 2 reactants are added to form new element(s) and/or radioactive particle from table O.
Half life time required for half of a naturally radioactive substance to decay. This time is constant.
Alpha radiation helium nucleus. +2 charge, Mass of 4, least dangerous radiation
Beta radiation electrons, no sig mass, negative charge. Can be stopped by clothing.
Gamma radiation high energy waves, most dangerous. No mass or charge.
Positron a positive electrons. (magnetically flipped)
Nuclear fission splitting a large element (U or Pu) into smaller elements, releasing LOTS of energy. Used in nuclear reactors
Nuclear fusion combining 2 hydrogens to make helium. Requires super high temperatures to overcome nuclear repulsions. Occurs on the sun
Created by: etucci