The half life of `._(92)^(238)U` is `4.5 xx 10^(9)` years. Uranium emits an `alpha`particle to give thorium. Calculate the time required to get the product which contains equal masses of thorium and uranium.

The half life of `._(92)^(238)U` is `4.5 xx 10^(9)` years. Uranium emi

1.	The half life of `._(92)^(238)U` is `4.5 xx 10^(9)` years. Uranium emits an `alpha`particle to give thorium. Calculate the time required to get the product which contains equal masses of thorium and uranium.
Answer» `N_(0) = (1)/(238) + (1)/(234)`, `N = (1)/(238)` Use, `(0.693)/(t_(1//2)) = (2.303)/(t) log_(10) ((N_(0))/(N))`

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The half life of `._(92)^(238)U` is `4.5 xx 10^(9)` years. Uranium emits an `alpha`particle to give thorium. Calculate the time required to get the product which contains equal masses of thorium and uranium.

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