Use this paragraph: The half-life of carbon-14 is 5,700 years. A certain sample of wood has 20 grams of carbon-14 when it is alive.
How many grams of carbon will it have after 5,700 years?
(1 point)
Responses
5 grams
5 grams
2 grams
2 grams
40 grams
40 grams
10 grams
1 answer
The half-life of carbon-14 is 5,700 years, which means that every 5,700 years, the amount of carbon-14 in a sample is cut in half.
If the wood sample has 20 grams of carbon-14 when it is alive, after 5,700 years, the amount will be:
20 grams / 2 = 10 grams.
So, the correct response is:
10 grams.
1 answer
1 answer
1 answer
1 answer