64\nselect the correct answer.\nthe unstable isotope nickel - 59 can be used to date rocks that contain it…

64\nselect the correct answer.\nthe unstable isotope nickel - 59 can be used to date rocks that contain it. nickel - 59 decays into the more stable cobalt - 59. the nickel isotope has a half - life.\nwhich statement about nickel - 59 is true?\n○ a. after 76,000 years, all the nickel - 59 in a rock decays into cobalt - 59.\n○ b. nickel - 59 can only be used to date rocks that are younger than 76,000 years.\n○ c. all the nickel - 59 stabilizes after it completes one half - life period of 76,000 years.\n○ d. the amounts of nickel - 59 and cobalt - 59 remain the same over a half - life period.\n○ e. the amounts of nickel - 59 and cobalt - 59 tell how long ago the rock cooled to closure temperature.\nreset next

64\nselect the correct answer.\nthe unstable isotope nickel - 59 can be used to date rocks that contain it. nickel - 59 decays into the more stable cobalt - 59. the nickel isotope has a half - life.\nwhich statement about nickel - 59 is true?\n○ a. after 76,000 years, all the nickel - 59 in a rock decays into cobalt - 59.\n○ b. nickel - 59 can only be used to date rocks that are younger than 76,000 years.\n○ c. all the nickel - 59 stabilizes after it completes one half - life period of 76,000 years.\n○ d. the amounts of nickel - 59 and cobalt - 59 remain the same over a half - life period.\n○ e. the amounts of nickel - 59 and cobalt - 59 tell how long ago the rock cooled to closure temperature.\nreset next

Answer

Brief Explanations:

Half - life is used in radiometric dating. Nickel - 59's decay to cobalt - 59 can be used to determine the time since the rock cooled to closure temperature. After one half - life, only half of the nickel - 59 decays, not all. It can be used for rocks of various ages depending on the amounts of nickel - 59 and cobalt - 59 present.

Answer:

E. The amounts of nickel-59 and cobalt-59 tell how long ago the rock cooled to closure temperature.