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Author Question: Why do atoms only emit certain wavelengths of light when they are excited? (Why do line spectra ... (Read 15 times)

renzo156

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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

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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


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