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

Author Question: Using the restrictions set forth by the uncertainty principle, which of the following combinations ... (Read 59 times)

Pea0909berry

  • Hero Member
  • *****
  • Posts: 573

Using the restrictions set forth by the uncertainty principle, which of the following combinations of values is it possible to know simultaneously?
 


 

a.I, II, III, IV, V, VI, VII
  b.I, III, VI, VII
  c. II, III, VI, VII
  d. III, IV, VI, VII



Question 2

Bohr found that the total angular momentum of the hydrogen atom was L = n, but this prediction was incorrect. Choose the statement below that best explains why.
  a.The Zeeman effect prevents certain orientations of L.
  b.Bohr's semiclassical planetary model of the atom did not include space quantization of angular momentum.
  c.Bohr's restrictions allowed for a state where L = 0, while this is quantum mechanically forbidden by the uncertainty principle.
  d. Bohr's model allowed the electrons to pass through the nucleus as well as orbiting around it.



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
Answer to Question 1

c.
There is no violation of the uncertainty principle from knowing the magnitude of the total angular momentum, one component, and the angular momentum quantum number and magnetic quantum number. In fact, the total angular momentum depends on the angular momentum quantum number and the z component of the total angular momentum depends on the magnetic quantum number.

Answer to Question 2

b.
Bohr's planetary model with the electrons in orbit around a nucleus was not complete. While the picture of such a well-known classical subject is sometimes useful to describe a complex situation, in this case Bohr's model leaves out the space quantization of the angular momentum. Since the angular momentum provided by the magnetic quantum number is quantized, there are limits to the directions of. This makes the total angular momentum depend on l(l + 1) instead of Bohr's result




Pea0909berry

  • Member
  • Posts: 573
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it


ebonylittles

  • Member
  • Posts: 318
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

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

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

For a complete list of videos, visit our video library