Question

3. If fluorine has a half-life of 8 days, how much of a 4g sample remains after 16 days?

1
2
0
3

Answer 1

What's good my brother,

The amount of fluorine remaining after 16 days can be calculated by using the formula:

N = N0 * (1/2)^(t/T)

where N is the amount remaining, N0 is the initial amount, t is the time elapsed (16 days), T is the half-life (8 days), and the exponent (t/T) represents the number of half-lives that have occurred.

Plugging in the values, we have:

N = 4 g * (1/2)^(16/8)

N = 4 g * (1/2)^2

N = 4 g * 1/4

N = 1 g

So, after 16 days, 1 gram of the 4-gram sample of fluorine remains.

Thanks bro and give 5 stars.