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

Author Question: If a radioactive element has a half-life of 5760 years, and the amount of parent material remaining ... (Read 117 times)

gbarreiro

  • Hero Member
  • *****
  • Posts: 566
If a radioactive element has a half-life of 5760 years, and the amount of parent material remaining is one-fourth of the original amount, the specimen is about
 
  A) 11,520 years old.
  B) 17,280 years old.
  C) 23,040 years old.
  D) 28,800 years old.

Question 2

What are the limitations in obtaining radiometric dates?
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jmfn03

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

Answer: A

Answer to Question 2

Answer: When using the half-life method, scientists assume a closed system where there has been no addition or loss of parent or daughter products. If this assumption is not true, age determination will be wrongthe age will be either too old or too young. Another limitation exists for rocks subjected to metamorphism in which the rock's age has been reset. Making sure that a good sample is used, and careful cross checking between samples increases accuracy.




gbarreiro

  • Member
  • Posts: 566
Reply 2 on: Jul 29, 2018
:D TYSM


rleezy04

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Excellent

 

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

For a complete list of videos, visit our video library