Interpretation : The spectrum is continuous except for a dark line at 589 nm is to be observed and explained.
Concept Introduction : The study of atoms (and atomic ions) through their interactions with
Answer to Problem 70A
The spectrum is continuous except for a dark line because the electron is not capable of releasing a photon at 589 nm.
Explanation of Solution
The electrons in atoms migrate to higher energy levels when they absorb energy. When these electrons fall in energy, they lose energy by releasing light.
But at 589 nm, the spectrum is continuous and a dark line is observed.
The sodium atom's outermost electron absorbs photons with a wavelength of 589 nm when it moves to a higher energy level, but it lacks the energy to release a photon with this wavelength.
Chapter 5 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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