The half-life of radium-226 is 1620 years. How much of one gram of radium-226 will remain unchanged after four half-lives?

a) 0.125 g

b) 0.50 g

c) 0.0625 g

d) 0.25 g

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21 August, 18:32

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Sadie House · Answer 1

The correct answer is option C : 0.0625g of one gram of radium-226 will remain unchanged after four half-lives.

The half-life of radium-226 is 1620 years. How much of one gram of radium-226 will remain unchanged after four half-lives?a) 0.125 gb) 0.50 gc) 0.0625 gd) 0.25 g