SOLUTION: The half-life of radium is 1690 years. If 70 grams are present now, how much will be present in 830 years?

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Question 1170938: The half-life of radium is 1690 years. If 70 grams are present now, how much will be present in 830 years?
Answer by ikleyn(52781)   (Show Source):
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The remaining mass = = 49.80293 grams. ANSWER

Solved.

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The formula is SELF-EXPLANATORY.

It means that if you have questions regarding this formula, you should look in it and listen attentively what it tells you.

. . . . . . . .

For the theory, and to see many other similar solved problems, look into the lesson
    - Radioactive decay problems
in this site.

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    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lesson is the part of this online textbook under the topic "Logarithms".

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Free of charge online textbook in ALGEBRA-I
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to your archive and use it when it is needed.

SOLUTION: The​ half-life of radium is 1690 years. If 70 grams are present​ now, how much will be present in 830 ​years?

SOLUTION: The half-life of radium is 1690 years. If 70 grams are present now, how much will be present in 830 years?