A radioactive substance with half-life 10 years has 200 g now. When will only 50 g remain?
- Acheck_circle
years
- B
years
- C
years
- D
years
Explanation
, so 2 half-lives = 20 years.
SAT Math· difficulty 5/5
A radioactive substance with half-life 10 years has 200 g now. When will only 50 g remain?
years
years
years
years
Explanation
, so 2 half-lives = 20 years.
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