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Marina CMI [18]
3 years ago
6

How much of a 24-gram sample of Radium-226 will remain unchanged at the end of three half-life periods?

Chemistry
1 answer:
shutvik [7]3 years ago
8 0

Answer:

The right answer is "3 g".

Explanation:

Given:

Initial mass substance,

M_0=24 \ g

By using the relation between half lives and amount of substances will be:

⇒ M=\frac{M_0}{2^n}

        =\frac{24}{2^3}

        =3 \ g

Thus, the above is the correct answer.

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