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Question

Hydrogen atom contains one electron. But, the spectrum of hydrogen contains number of lines.
  1. True
  2. False

A
False
B
True
Solution
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In a sample of hydrogen gas, the number of hydrogen molecules is present. These molecules dissociate and produce hydrogen atoms when heated. Each hydrogen atom contains one electron. The hydrogen atoms absorb different amounts of energy and go to different excited states. From there, they take different paths and come back to ground state. Since different paths are associated with different energies, different spectral lines are formed in the spectrum.

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Similar Questions
Q1
Hydrogen atom contains one electron. But, the spectrum of hydrogen contains number of lines.
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Q2
Though there is only one electron in a hydrogen atom, the spectrum of hydrogen contains a number of lines. How do you explain this?
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Q3
In an electronic transition from n = 1 to n = 5 in hydrogen atom, the spectrum contains __________ number of lines.
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Why large no. of lines appear in the spectrum of hydrogen although it contains only one electron?

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Q5
State True or False.
The atomic spectrum of hydrogen contains lines in the radio frequency region of the electromagnetic spectrum.
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