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nadezda [96]
3 years ago
15

Based on table N of the reference tables what is the number of hours required for 42k (potassium -42) to undergo three half-life

periods
Chemistry
1 answer:
skelet666 [1.2K]3 years ago
3 0

The number of hours required : 37.2 hours

<h3>Further explanation</h3>

Given

⁴²K (potassium -42)

Required

The number of hours

Solution

The atomic nucleus can experience decay into 2 particles or more due to the instability of its atomic nucleus.  

Usually, radioactive elements have an unstable atomic nucleus.  

Based on Table N(attached), the half-life for ⁴²K is 12.4 hours, which means half of a sample of ⁴²K will decay in 12.4 hours

For three half-life periods :

\tt 3\times 12.4=37.2~hours

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