If there are 50 grams of a radioactive element how much will be present after 1 half life,2,half life, and 3 half life

6.25g

a half life will take away half of the element so you wouldjut divide by 2 three times

Explanation:

1HL- 25g, 2HL- 12.5g, 3HL- 6.25g

Explanation:

When trying to calculate Half Lives (HL) you want to make sure that you divide by 2 every time as a half life cuts the amount in half  so 50/2=25(1HL) 25/2=12.5(2HL) 12.5/2=6.25(3HL) and of course dont forget the unit which is grams

- both b and d.

-since b and d are the closest coastlines then that makes it the most affected.

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