The correct answer is B: 5 grams.
Since the half-life of carbon-14 is 5,700 years, after that time period, half of the original carbon-14 will have decayed. This means that the sample will have 10 grams of carbon-14 remaining.
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?
A: 10 grams
B: 5 grams
C: 40 grams
D: 2 grams
1 answer
1 answer