First Order Half Life Video Lessons

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Concept:

Problem: (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?

FREE Expert Solution

We are being asked to determine the half-life


Recall the equation relating half-life and decay constant

t12 = 0.693k


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Problem Details

(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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