Question

Carbon-14 is a beta-emitter with a half life of 5730 years. a) If you would find...

Carbon-14 is a beta-emitter with a half life of 5730 years.

a) If you would find an animal that died 100,000 years ago, what ratio between stable and radioactive carbon would you find?

b) Could you use Carbon-dating to determine the age of a rock? Explain.

c) How could you experimentally distinguish the beta emission from alpha or gamma?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
9. C-14 decays to N-14 by beta emission with a half-life of 5730 years. What is...
9. C-14 decays to N-14 by beta emission with a half-life of 5730 years. What is the age of an artifact that has a ratio of N-14 to C-14 of 15:1? 10. Refer to question 9 above: If an artifact is found to be 34,380 years old, what fraction of the original amount of C-14 isotope in the artifact has decayed?
Carbon-14 is a radioactive isotope of carbon. It decays into Nitrogen-14 through beta decay, with a...
Carbon-14 is a radioactive isotope of carbon. It decays into Nitrogen-14 through beta decay, with a half-life of 5730 years. By comparing the amount of radioactive Carbon-14 with the amount of stable Carbon-12 (the most common isotope of carbon), we can determine the age of an object. a) How many protons and neutrons are in Carbon-14? Carbon-12? b) How many years will it take for an object to lose 87.5% of its Carbon-14? c) If 10000 years have passed, what...
Q1. Carbon-14 – or 14C – is a radioactive isotope of carbon with a half-life of...
Q1. Carbon-14 – or 14C – is a radioactive isotope of carbon with a half-life of 5,730 years. It decays into nitrogen-14 – or 14N – , which is a stable isotope of nitrogen. (a) Which of the three nuclear decay processes describes the decay? Explain. (Hint: You can get the atomic number of carbon and nitrogen from a periodic table.) (b) Write down the equation for the decay. (c) What is the decay constant for 14C? All isotopes of...
after an animal dies it 14^C content decrease with a half-life of 5730 years. if archaeologist...
after an animal dies it 14^C content decrease with a half-life of 5730 years. if archaeologist finds an acient firepit containing partially consumed firewood and the 14^C content of the 31.9% that of an equal carbon sample of a present day tree. what is the age of the acient site
Carbon 14 (146C, mass of 14.003242u, half-life of 5730 years) can be used to date things...
Carbon 14 (146C, mass of 14.003242u, half-life of 5730 years) can be used to date things that were once living. When a particular tree fell, a chunk of that tree would have had an activity of 15 decays/minute. Now, that chunk of the tree has a total of 1x10-12 g of carbon 14 in it. How long ago did the tree fall? [3436.6 yrs]
Carbon 14 is a radioactive isotope of carbon, the most common isotope of carbon being carbon...
Carbon 14 is a radioactive isotope of carbon, the most common isotope of carbon being carbon 12. Carbon 14 is created when cosmic ray bombardment changes nitrogen 14 to carbon 14 in the upper atmosphere. The resulting carbon 14 combines with atmospheric oxygen to form radioactive carbon dioxide, which is incorporated into plants by photosynthesis. Animals acquire carbon 14 by eating plants. When an animal or plant dies, it ceases to take on carbon 14, and the amount of isotope...
Carbon-14 is unstable and undergoes β- decay, with a half-life of 5730 years. (a) What does...
Carbon-14 is unstable and undergoes β- decay, with a half-life of 5730 years. (a) What does it decay into? (b) How much energy is released in the reaction? (c) If a 1 g sample of carbon contains 0.1% carbon-14, what is the activity in units of curie (Ci), where 1 Ci = 3.7 × 1010 decay/s? (d) What is the activity after 20,000 years have passed?
Carbon Dating: All living organisms contain two isotopes (types) of carbon; carbon-12 ( 12C) and carbon-14...
Carbon Dating: All living organisms contain two isotopes (types) of carbon; carbon-12 ( 12C) and carbon-14 (14C). Carbon-12 is stable, meaning that its atoms do not decay. Carbon-14 however, is radioactive or unstable, meaning that an atom of carbon-14 may decay. It does this by throwing off an electron and thus transforming itself into Nitrogen 14. The ratio of carbon-14 to carbon-12 is the same for all living organisims, about 1/10, 000. However, once an organisim dies the carbon-14 begins...
A living specimen in equilibrium with the atmosphere contains one atom of 14C (half-life = 5730...
A living specimen in equilibrium with the atmosphere contains one atom of 14C (half-life = 5730 yr) for every 7.7 ✕ 1011 stable carbon atoms. An archeological sample of wood (cellulose, C12H22O11) contains 20.6 mg of carbon. When the sample is placed inside a shielded beta counter with 88.0% counting efficiency, 765 counts are accumulated in one week. Assuming that the cosmic-ray flux and the Earth's atmosphere have not changed appreciably since the sample was formed, find the age of...
11. Carbon-14 has a half-life of 5760 years. A 1-gram sample of an ancient pine spear...
11. Carbon-14 has a half-life of 5760 years. A 1-gram sample of an ancient pine spear contains 1/8 as much carbon-14 as is present in a modern pine branch. (a) Approximately how old is the spear? (b) If a spear were 100,000 years old, why would carbon dating be inadequate for dating it?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT