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

Author Question: If the energy of n = 4 is 0.85 eV and that of n = 2 is 3.40 eV in a hydrogen atom, a transition from ... (Read 36 times)

shofmannx20

  • Hero Member
  • *****
  • Posts: 562
on: Jul 28, 2018
If the energy of n = 4 is 0.85 eV and that of n = 2 is 3.40 eV in a hydrogen atom, a transition from n = 4 to n = 2 will release a photon of what energy?

Question 2

The following statements all refer to the human brain when mental activity is occurring. Which statement is correct?
 a. In order to detect electric currents in the brain, you must open the skull and make direct electrical contact with the brain.
  b. The electric currents in the brain can be detected outside the brain by detecting the magnetic fields they produce.
  c. The electric currents in the brain can be mapped by shaving a person's head and dropping iron filings on the head.
  d. The electric currents in the brain produce an aura that can be detected visually.
  e. The electric currents in the brain cannot be detected by any means.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Expo

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Jul 28, 2018
Answer to Question 1

2.55 eV (-0.85 eV + 3.40 eV)

Answer to Question 2

b


shofmannx20

  • Hero Member
  • *****
  • Posts: 562
Reply #2 on: Jul 28, 2018
Thank you!


Expo

  • Sr. Member
  • ****
  • Posts: 351
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

The moray eel meets its energy and nutrient needs by being an effective predator. The moray eel meets its energy and nutrient needs by being an effective predator.
A Mitochondrion Converts Energy from Fuel Molecules into ATP A Mitochondrion Converts Energy from Fuel Molecules into ATP
Some biologically important hydrogen bonds Some biologically important hydrogen bonds
1-16 The Sun’s Daily Path and the Energy It Deposits Here 1-16 The Sun’s Daily Path and the Energy It Deposits Here
Rich Energy Deposits Rich Energy Deposits
Effect of a catalyst on activation energy Effect of a catalyst on activation energy
Video: Inflammation

For a complete list of videos, visit our video library