Question

I NEED HELP PLS HURRY!

Element “R” has a half-life of 2 minutes. After 6 minutes, how much of a 100 g sample would remain?

Answer 1

answer to this question is 12.5kg

Answer 2

12.5 g

Step-by-step explanation:

If element R's half life is 2 minutes then we need to divide 100 g by 1/2 3 times. 100/2 = 50/2= 25/2= 12.5 g.

Hope this helps!