« previous next »

Author Question: Why do atoms only emit certain wavelengths of light when they are excited? (Why do line spectra ... (Read 10 times)

renzo156

  • Hero Member
  • *****
  • Posts: 526
on: Aug 27, 2018
Why do atoms only emit certain wavelengths of light when they are excited? (Why do line spectra exist?)
 
  What will be an ideal response?

Question 2

Which of the following elements is most likely to form an ion with a -1 charge?
 
  A) Mg
  B) Si
  C) S
  D) Cl
  E) Sc


juliaf

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Aug 27, 2018
Answer to Question 1

The energies of atoms are quantized. When an electron moves from one energy level to another during emission, a specific wavelength of light (with specific energy) is emitted. The electrons are not allowed in between quantized energy levels and thus there is no continuous spectrum observed.

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

How phytochrome acts as a molecular light switch. How phytochrome acts as a molecular light switch.
Classifying the Spectra of Stars Classifying the Spectra of Stars
Stellar Size and Spectra Stellar Size and Spectra
Three days after the Boston Marathon explosion, the FBI released this photograph that had been taken Three days after the Boston Marathon explosion, the FBI released this photograph that had been taken
A Toyota/Lexus hybrid electric vehicle has a ready light. If the ready light is on, the engine can ... A Toyota/Lexus hybrid electric vehicle has a ready light. If the ready light is on, the engine can ...
The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum
Video: ETC Protein Complexes & Chemiosmosis (Total ATP Production and ATP Synthase)

For a complete list of videos, visit our video library