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A sample has a half-life of 1000 years. 1/2 of the isotopes are parents. How old is it? a) 500 years b) 1000 years c) 2000 years d) 4000 years
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A sample has a half-life of 1000 years. 1/2 of the isotopes are parents. How old is it?

a) 500 years

b) 1000 years

c) 2000 years

d) 4000 years

User Rotsch
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6.3k points

2 Answers

10 votes
The answer is A you just divide the numbers
User SanD
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6.3k points
6 votes
The correct answer is A
User NewNameStat
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6.4k points
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