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What is the half-life of a radioactive substance?
What is the half-life of a radioactive substance?
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Practice Questions
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Q1
What is the half-life of a radioactive substance?
The time taken for half of the substance to decay
The time taken for the entire substance to decay
The time taken for the substance to double
The time taken for the substance to reach equilibrium
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The half-life of a radioactive substance is defined as the time taken for half of the substance to decay.
Questions & Step-by-step Solutions
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Q
Q: What is the half-life of a radioactive substance?
Solution:
The half-life of a radioactive substance is defined as the time taken for half of the substance to decay.
Steps: 5
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Step 1: Understand that a radioactive substance is one that can decay over time.
Step 2: Know that decay means the substance breaks down into something else.
Step 3: The half-life is a specific time period.
Step 4: During this time, half of the original amount of the substance will have decayed.
Step 5: For example, if you start with 100 grams of a substance, after one half-life, you will have 50 grams left.
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