The Half-Life of the radioactive sample is 8.1 hours.
<h3>What is half life of a radioactive element?</h3>
The half-life of a radioactive substance is the time taken for half the amount of atoms in the given substance to decay.
12.5 grams remains out of 100 grams of the sample.
This is 1/8 of the original samples.
1/8 of the original sample reperesent three half-lives undergone.
Half-Life of the radioactive sample = 24.3/3 = 8.1 hours
Therefore, the Half-Life of the radioactive sample is 8.1 hours.
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You can tell that a crystal is a crystal if it creates a rainbow prism effect. Or you can tell by tapping the crystal. If he crystal makes a musical ring noise (like how a glass cup would sound) it’s a crystal.
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Answer:
The answer to your question is below
Explanation:
This student is wrong.
Chemical bonds are forces that hold atoms together to form a molecule or compound. These interactions are inside the molecule. Example
Ionic bond: NaCl (sodium and chlorine).
Intermolecular forces are weaker than chemical bonds and they are forces between atoms or molecules. These interactions are among different molecules.
Example
Two molecules of water interact forming hydrogen bridges.
Answer:
water vapor
Explanation:
the the answer is water vapor
