Question

Barium-131 is used in the detection of bone tumors. The half-life of barium-131 is approximately 12 days. How long will it take for the radiation level of barium-131 to drop to 1/4 of its original level?.

Answer 1

The amount of barium-131 radiation will be reduced to 1/4 of its initial level after 24 days.

How long is a half-life in terms of time?

The period of time needed for the reactant concentration to drop to half its initial value is known as the half-life of a reaction. t 1/2 = 0.693/k is a constant that relates to the reaction's rate constant and represents the half-life of a first-order reaction.

How does a first order reaction's half-life equation work?

t1/2 = 0.693/k is a constant that relates to the reaction's rate constant and represents the half-life of a first-order reaction.

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