The mass of technetium-99 after 24 hour has to be calculated. Radiocarbon dating: The dynamic equilibrium exists in all living organism by exhaling or inhaling, maintain the same ratio of 12 C and 14 C that takes in. when the living organism dies, the intake of 14 C stops and it’s the ratio no longer exhibits equilibrium; undergoes radioactive decay. Half-life period: The time required to reduce to half of its initial value. Formula used to calculate half-life: t 1/2 = 0 .693 k where, k is rate constant . ( or ) ln[N] t - ln[N] 0 = -kt

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Chapter 25.9, Problem 4Q

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Interpretation:

The mass of technetium-99 after 24 hour has to be calculated.

Radiocarbon dating: The dynamic equilibrium exists in all living organism by exhaling or inhaling, maintain the same ratio of 12C and 14C that takes in. when the living organism dies, the intake of 14C stops and it’s the ratio no longer exhibits equilibrium; undergoes radioactive decay.

Half-life period: The time required to reduce to half of its initial value.

Formula used to calculate half-life:

t1/2= 0.693kwhere, k is rate constant. (or)ln[N]t- ln[N]0= -kt

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