Radon is a naturally occurring radioactive gas. It is on of the products produce as uranium decays. Radon has a half-life of approximately 4 days. If you have a sample of radon with a mass of 4 grams, how many grams will be left at the end of 8 days?

(A) 4

(B) 2

(C) 1

(D) none of these

Question

Katelyn Barber

Chemistry

13 September, 07:03

Radon is a naturally occurring radioactive gas. It is on of the products produce as uranium decays. Radon has a half-life of approximately 4 days. If you have a sample of radon with a mass of 4 grams, how many grams will be left at the end of 8 days?

(A) 4

(B) 2

(C) 1

(D) none of these

+1

Answers (2)

Know the Answer?

Matthew Munoz · Answer 1

Matthew Munoz 13 September, 07:13

0

d of course it would be none

Kendal Carson · Answer 2

Every 4 days, the amount of radon you started with is reduced by half.

Start with 4 grams of radon on day 1

After 4 days, you have (1/2) * 4 grams of radon = 2 grams

Start with 2 grams of radon on day 5

After four more days (end of day 8) you have:

(1/2) * 2 grams = ?

Radon is a naturally occurring radioactive gas. It is on of the products produce as uranium decays. Radon has a half-life of approximately 4 days. If you have a sample of radon with a mass of 4 grams, how many grams will be left at the end of 8 days?(A) 4(B) 2(C) 1(D) none of these

Radon is a naturally occurring radioactive gas. It is on of the products produce as uranium decays. Radon has a half-life of approximately 4 days. If you have a sample of radon with a mass of 4 grams, how many grams will be left at the end of 8 days?

(A) 4

(B) 2

(C) 1

(D) none of these