Question

How much 1g of radioactive element would be left after 4 half lives

Answer 1

Answer:

Percentage of mass of radioactive substance undecayed after  

n=4 half-lives.

=(  

2

1

​  

)  

4

×100%=  

16

100

​  

=6.25%

Explanation:

Answer 2

percantage of mass of quantity to like59?@4:?&5/,&@5‍️