Question

Assuming we have 100.0 g of element A, how much will be left after 4 half lives?

Answer 1

Half Life 1: 100/2 = 50

Half Life 2: 50/2 = 25

Half Life 3: 25/2 = 12.5

Half Life 4: 12.5/2 = 6.25g

Step-by-step explanation:

Answer 2

25

Step-by-step explanation:

because 100 divided by4 is 25