This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: There are samples of two different isotopes, X and Y. Both contain the same number of radioactive ... (Read 60 times)

joesmith1212

  • Hero Member
  • *****
  • Posts: 549
on: Jul 28, 2018
There are samples of two different isotopes, X and Y. Both contain the same number of radioactive atoms. Sample X has a half-life half that of Y. How do their decay rates compare?
 a. The rates of X and Y are equal.
  b. X has a greater rate than Y.
  c. The rate depends on atomic number, not half-life.
  d. X has a smaller rate than Y.

Question 2

If a fossil bone is found to contain 1/16th as much Carbon-14 as the bone of a living animal, what is the approximate age of the fossil? (half-life of 14C = 5730 years)
 a. 7640 years
  c. 45,800 years
  b. 22,900 years
  d. 17,200 years


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Awesome

  • Sr. Member
  • ****
  • Posts: 280
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

B


joesmith1212

  • Member
  • Posts: 549
Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

Liamb2179

  • Member
  • Posts: 365
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Flower part number is a characteristic difference between monocots and eudicots (a) Flowers and buds Flower part number is a characteristic difference between monocots and eudicots (a) Flowers and buds
How to write any number in scientific notation How to write any number in scientific notation
Atmospheric currents carried radioactive fallout across much of Northern Hemisphere Atmospheric currents carried radioactive fallout across much of Northern Hemisphere
CaCO3 with oxygen isotopes CaCO3 with oxygen isotopes
The relationship between the number of stem cell divisions in the lifetime of a given tissue and the The relationship between the number of stem cell divisions in the lifetime of a given tissue and the
Directions: Fill in the correct number or word(s). Order: Lantus U-100 insulin 68 units subcut ... Directions: Fill in the correct number or word(s). Order: Lantus U-100 insulin 68 units subcut ...
Video: Pressure volume relationships - Normal inspiration and expiration

For a complete list of videos, visit our video library