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300 g of an unknown radioactive substance decays to 112 g after 180 seconds. What is the half-life of this substance? ight now that the noobs are gone, any late nigh peeps still awake?
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300 g of an unknown radioactive substance decays to 112 g after 180 seconds. What is the half-life of this substance?

ight now that the noobs are gone, any late nigh peeps still awake?

User Shanika Ediriweera
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1 Answer

5 votes
Answer: 2.1 minutes

Step-by-step explanation:
The half-life equation states that,
A=A0⋅(1/2)t/t0.5
A0 is the initial amount of substance
t is the time
t0.5 is the half-life of the substance
User Hmadrigal
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