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kirill115 [55]
3 years ago
14

If 50% of a radioactive element remains after 4000 years, what is the half-life?

Chemistry
1 answer:
ANTONII [103]3 years ago
4 0

Hey there!

A half-life means after a certain amount of time, half of that substance will be gone/changed after that time.

If 50%, or half, of the element remains after 4000 years, that means the half life must be 4000 years.

Hope this helps!

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What is the concentration (in M) of a 225ml potassium sulfate solution that contains 4.15g of potassium?
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The concentration of solution in M or mol/L can be calculated using the following formula:

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