We are being asked to determine the half-life

Recall the equation relating half-life and decay constant

$\overline{){{\mathbf{t}}}_{{\raisebox{1ex}{$\mathbf{1}$}\!\left/ \!\raisebox{-1ex}{$\mathbf{2}$}\right.}}{\mathbf{}}{\mathbf{=}}{\mathbf{}}\frac{\mathbf{0}\mathbf{.}\mathbf{693}}{\mathbf{k}}}$

(a) Sodium-24 has a decay constant of 4.63 x 10^{–2} h^{–1}. What is its half-life?

(b) The half-life of radon-222 is 3.823 days. What is its decay constant?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the First Order Half Life concept. You can view video lessons to learn First Order Half Life. Or if you need more First Order Half Life practice, you can also practice First Order Half Life practice problems.