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

Author Question: Compare and contrast the three common types of radioactive decay: alpha particle decay, beta ... (Read 203 times)

burton19126

  • Hero Member
  • *****
  • Posts: 532
on: Jul 16, 2018
Compare and contrast the three common types of radioactive decay: alpha particle decay, beta particle decay, electron capture. Your answer should include how the atomic mass and the atomic number of the isotope have changed.
 
  What will be an ideal response?

Question 2

One method of geologic dating is dendrochronology, or the science of tree ring dating. Based on what you know about tree rings, how could you determine the age of the tree? Would this be an example of relative dating or numerical dating?
 
  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

abro1885

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: Alpha decay - An alpha particle of 2 protons and 2 neutrons is emitted from the nucleus. The atomic mass decreases by 4 and the atomic number by 2.
Beta decay - An electron is given off from a nucleus, which does not change the atomic mass because the mass of an electron is negligible. Because the electron comes from a neutron, there is now an extra proton in the nucleus, which increases the atomic number by 1.

Answer to Question 2

Answer: You can date the tree by counting the rings. (Most tree species produce an annual ring.) This would be an example of numerical dating.


burton19126

  • Member
  • Posts: 532
Reply 2 on: Jul 16, 2018
Gracias!

Viet Thy

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Types of Epithelia Types of Epithelia
Common Symptoms of Schizophrenia Common Symptoms of Schizophrenia
The coagulation cascade. Both the intrinsic pathway and extrinsic pathway lead to a common pathway ... The coagulation cascade. Both the intrinsic pathway and extrinsic pathway lead to a common pathway ...
Common Triggers of Asthma Common Triggers of Asthma
Types and locations of epithelial tissues. Types and locations of epithelial tissues.
What was the bombarding particle used What was the bombarding particle used
Video: Acid-base imbalances - compensation of metabolic acidosis and alkalosis

For a complete list of videos, visit our video library