Physics, asked by gokulanup2, 10 months ago

The half-life of radium is 1600 years. What fraction of a sample of radium will be disintegrated after 6400 years?

Answers

Answered by aceke

5

Answer:

Explanation:

Number of half lives(n)=6400/1600= 4 half lives

Fraction disintegrated =(1/2)^n

=(1/2)^4

=1/16

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