Question

A uranium235 sample starts with 200 atoms and 700 million years later there are 100 atoms What is the halflife of uranium235?

Answer 1

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Answer 2

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The answer of u r question is...✌️✌️

⭐️A uranium 235 sample strata with 200 atoms and 700 million years later there are 100 atoms what is the half-life of uranium 235⭐️

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Given

200 atoms of uranium needs 700 million years to reach 100 atoms

so,

200×1/2

=100atoms

Then,

To decay =234-100

t1/2=700


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