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Radioactive Review
Half lives + Radioactive Decay
Question | Answer |
---|---|
decrease in this can be used to date organic remains | C-14 |
this remains the same in both living and dead organisms | C-12 |
a change in the number of neutrons | isotope |
a change in the number of protons | different element |
having a longer half life | more stable |
having a shorter half life | less stable |
the result of 2 half lives | 25% remaining |
the result of 3 half lives | 12.5% remaining |
the result of 1 half life | 50% remaining |
can be used to cause radioactive decay | alpha particles, beta particles, gamma rays |