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

Author Question: The diagram below shows the radioactive decay of cesium (135Cs). What is the half-life of 135Cs? ... (Read 15 times)

rl

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
The diagram below shows the radioactive decay of cesium (135Cs). What is the half-life of 135Cs?
 
 

Question 2

The diagram below illustrates the radioactive decay of Potassium (40K), which has a half-life of 1.3 billion years. If a lunar rock is found that currently contains 5 grams of 40K, and it is determined that the sample contained 20 grams when it was formed, how old is the lunar rock?
 
 
   
  a.
  6.5 billion years
  b.
  19.5 billion years
  c.
  2.6 billion years
  d.
  3.9 billion years
  e.
  4.6 billion years


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

blazinlyss

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 27, 2018
Answer to Question 1

3 million years

Answer to Question 2

C


rl

  • Member
  • Posts: 579
Reply 2 on: Jul 27, 2018
Wow, this really help

ryhom

  • Member
  • Posts: 366
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

The Many Faces of Life (Part 1) The Many Faces of Life (Part 1)
Diagram of the Twenty Essential Amino Acids Diagram of the Twenty Essential Amino Acids
Disaccharides Diagram Disaccharides Diagram
Stereotypes, which play such a profound role in social life, are a basic area of sociological ... Stereotypes, which play such a profound role in social life, are a basic area of sociological ...
Three pathways of complement combined. (a) Figure shows a summary of how each pathway proceeds. (b) ... Three pathways of complement combined. (a) Figure shows a summary of how each pathway proceeds. (b) ...
Life cycle of Coccidioides immitis. Life cycle of Coccidioides immitis.
Video: Michaelis–Menten equation & Kinetic parameters

For a complete list of videos, visit our video library