This topic contains a solution. Click here to go to the answer

Author Question: A rock contains 0.313 mg of lead-206 for each milligram of uranium-238. The for the decay of ... (Read 198 times)

future617RT

  • Hero Member
  • *****
  • Posts: 543

Question 1

A nuclide has a decay constant of 4.28 × 10-4/h. If the activity of a sample is 3.14 × 105/s, how many atoms of the nuclide are present in the sample?
◦ 7.34 × 108
◦ 2.64 × 1012
◦ 4.84 × 105
◦ 1.34 × 102
◦ 2.34 × 1011

Question 2

A rock contains 0.313 mg of lead-206 for each milligram of uranium-238. The for the decay of uranium-238 to lead-206 is 4.5 × 109 y. The rock was formed ________ y. ago.
◦ 1.41 × 109
◦ 1.08 × 109
◦ 1.39 × 109
◦ 2.00 × 109
◦ 1.56 × 109


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by future617RT on Jul 8, 2021

fffftttt

  • Sr. Member
  • ****
  • Posts: 322
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly




future617RT

  • Member
  • Posts: 543
Reply 2 on: Jul 8, 2021
:D TYSM


31809pancho

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

For a complete list of videos, visit our video library