HELP!! I'm trying to do my finals, and I cant remember this part!!! PLEASE I NEED HELP!! The half life of Sodium-24 is 15 hours. If we have 10 grams of Sodium-24, how much will remain after 15 hours​

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Question:

HELP!! I'm trying to do my finals, and I cant remember this part!!! PLEASE I NEED HELP!! The half life of Sodium-24 is 15 hours. If we have 10 grams of Sodium-24, how much will remain after 15 hours​

Answers

After 15 hours half of the mass of sodium is consumed. So, 5 grams of sodium is supposed to remain.

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