half-life
After each half-life, half the original radioactive nuclei remain. This topic is part of Nuclear Physics within Science & Nature. This page currently draws on 4 supporting questions, with answers and bonus facts available below.
half-life trivia questions
Half-life is the time required for half of a radioactive sample to do what?
Answer: Decay
Bonus fact: After each half-life, half the original radioactive nuclei remain.
After two half-lives, what fraction of the original radioactive material remains?
Answer: One-quarter
Bonus fact: Half of half is one-quarter.
Is radioactive half-life affected strongly by ordinary temperature changes?
Answer: No
Bonus fact: Nuclear decay rates are generally insensitive to normal chemical conditions.
What term describes the time for half the radioactive atoms in a sample to decay?
Answer: Half-life
Bonus fact: Half-life is characteristic of a radioactive isotope.