2 grams
The half-life of carbon-14 is the time it takes for half of the carbon-14 in a sample to decay. In this case, after 5,700 years, half of the carbon-14 would have decayed, leaving 10 grams of carbon-14. After another 5,700 years, half of that remaining carbon-14 would decay again, leaving 5 grams. Therefore, after 5,700 years, the sample of wood would have 10 grams of carbon-14.
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. And why is that answer true?
How many grams of carbon will it have after 5,700 years?
(1 point)
Responses
2 grams
2 grams
10 grams
10 grams
5 grams
5 grams
40 grams
1 answer
1 answer