There are samples of two different isotopes, X and Y. Both ...

[joesmith1212]

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

[Awesome]

Answer to Question 1

B

Answer to Question 2

B

[joesmith1212]

Gracias!

[irishcancer18]

Thanks for the timely response, appreciate it