Espectrum 1

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This figure is an schematic representation of the different electronic level for an hydrogen atom. The only electron is located in the lowest energy level. Fundamental state. The higher energy levels are only reached when the electron is excited by adding energy. Click on the following figure and look closely animation shown.

 

Emission lamp

 

Would you call the process shown in the animation?

IONIZATION	Wrong. Ionization requires loss of an electron.
ONLY EMISSION	Wrong. In this animation there are more processes.
SIMPLE ELECTRONIC TRANSITS	Wrong. There is something else.
EXCITEMENT, RELAXATION AND EMISSION OF A PHOTON	CORRECT. An electron previously excited, loses energy and emits a photon.