The half-life of radium-226 is 1600 years. How many
grams of a 7 g sample will remain after 3200 years?
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Ответ:
1600 years half life
3200/1600 is 2 half lifes
first half life takes the sample to 1/2 it's original amount and the second takes it to 1/4 of it's original amount
so 1/4*7gm is 1.75gm
Explanation:
Ответ:
Yes
Explanation:
I just guess