« previous next »

Author Question: Bohr's atomic theory predicted energy levels for hydrogen of En = (2 2 k2 e4m)/(hn)2. If instead we ... (Read 78 times)

future617RT

  • Hero Member
  • *****
  • Posts: 543
on: Jul 27, 2018
Bohr's atomic theory predicted energy levels for hydrogen of En = (2 2 k2 e4m)/(hn)2. If instead we place 1 electron in orbit about a bare nucleus of atomic number Z, how do you expect Z to be incorporated into the En formula and why?
 
  What will be an ideal response?

Question 2

Consider a motorcycle of mass 150. kg, one wheel of which has a mass of 10. kg and a radius of 30. cm.
 
  What is the ratio of the rotational kinetic energy of the wheels to the total translational kinetic energy of the bike? Assume the wheels are uniform disks.


Edwyer

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 27, 2018
Answer to Question 1

The attractive force is k(Ze)e/r2 instead of e2/r2. So replace e2 by Ze2 in the Bohr predictions: En = -(2 2 k2 Z2 e4m)/(hn)2

Answer to Question 2

0.13 : 1


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

future617RT

  • Hero Member
  • *****
  • Posts: 543
Reply #2 on: Jul 27, 2018
TY


Edwyer

  • Sr. Member
  • ****
  • Posts: 337
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

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

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

A Mitochondrion Converts Energy from Fuel Molecules into ATP A Mitochondrion Converts Energy from Fuel Molecules into ATP
(A) The levels of the spinal cord and spinal nerves. (B) Photograph of the spinal cord as it descend (A) The levels of the spinal cord and spinal nerves. (B) Photograph of the spinal cord as it descend
Cell Energy Cell Energy
Energy coupling in mechanical and chemical processes Energy coupling in mechanical and chemical processes
energy of interaction and distance of particle energy of interaction and distance of particle
Expressing amounts of energy in different energy units is necessary to solve many chemistry ... Expressing amounts of energy in different energy units is necessary to solve many chemistry ...
Video: Chemical Buffers - protein buffer, phosphate buffer system and bicarbonate buffer system

For a complete list of videos, visit our video library