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The spectrum of gaseous hydrogen includes a bright red line. Where does the ligh

ID: 1990567 • Letter: T

Question

The spectrum of gaseous hydrogen includes a bright red line. Where does the light
that forms this line come from?
a) from any of the energy levels of electrons in hydrogen atoms
b) from light emitted by electrons in one energy level
c) from light emitted when electrons in hydrogen atoms move from a lower
energy level to a higher one. The difference in the energies of those two
particular level is the energy of the emitted red light.
d) from the light emitted when electrons in hydrogen atoms move from a higher
energy level to a lower one. The difference in the energies of those two
particular level is the energy of the emitted red light.
e)from light emitted by electrons orbiting rapidly in an energy level that
corresponds to the energy of the emitted light.

Explanation / Answer

Energy is emitted as electrons go from an excited state to a ground state in the form of photons. Thus, since we know that this light is due to the release of energy from the higher to lower energy state, the answer is d. Hope this helped!

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