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12 Cards in this Set

  • Front
  • Back
combine smaller nuclei into large
split large nucleus to smaller nuclei
alpha decay
emission of alpha particle (4/2 He nucleus)
Beta decay
emission of beta prticle
neutron decay
emit neutron (1/0 n)
proton decay
emit proton (1/1 H)
gamma decay
emit gamma particle (0/0 gamma)

no change of charge or mass occur
positron emiision
positive equivalent of B particle

emiision of (0/+1B)
electron capture
rxn involving positron

adding 0/-1e
radioactive decay half life
time required for half of any given quantity of substance to react

the amt of radioactive substance that remains after a period of decay will decrease exponentially with increasing decay time
how much remains after decay?

n is number of half life
how much decayed?

n is number of half life