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It must omit a photon of light to lower the excited electron to a lower state. It may require multiple emissions to lower one electron multiple steps or multiple emissions to lower multiple excited electrons. (Incidentally this is why we see a blue sky - excited O2 molecules are emitting blue photons to get back to a ground state)

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Q: How does an excited atom go back to it's ground state?
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Related questions

Whenever an excited hydrogen atom falls back from an excited state to its ground state it?

The answer is (B) Emits a Photon of Radiation.


What must happen for an atom to go from an excited state to a ground state so color is seen?

An excited electron spontaneously drops back to its ground state, emitting a photon of light as it does so. <><><><><> The same thing happens in the nucleus. An excited nucleus drops down to a lower energy level, releasing a photon.


What is difference between a ground state electrons configuration and an excited state configuration?

In the ground state all the (only one for Hydrogen)) electrons is in the lowest stable orbit. If the electron gains energy (usually from a photon) it will orbit in a higher energy state (called excited).


An atom is in an excited state when it has its lowest energy?

No, when an atom is in an excited state, its electrons have gained energy, and they proceed to lose it when they fall back into their normal energy levels


An atom absorbs energy as its electron?

An electron in the ground state does absorb energy in form of photons or other electromagnetic radiations.


When an atom is excited the electrons go up in energy level and then soon return to ground state emitting a photonif energy can not be related were physically does this photon come from?

The exciting of an electron takes in energy. The fall back to the ground state releases that energy as a photon. The photon is created by the return to the ground state.


What is the definition of excited state electron?

An atom will go into an excited state when the electrons are given extra energy. Then after the electrons have been excited it will eventually go back to ground state producing a light as it returns to its normal state.


When an electron gets excited is energy released or absorbed?

To get excited, it must absorb energy. To get back to its ground state, it releases energy.


What does an electron do when a photon is released by an atom?

It goes back to its ground state.


Emissin of light from an atom occurs when an electron what?

Lots of wrong answers out there, tested this on school, the answer is: Drops from a higher to a lower energy level


What is happening within the hydrogen atom to create emission lines?

The electron in the atom becomes excited as something adds energy to it, moving it to a higher energy level. When the electron moves back to the normal energy level, called a ground state, it emits light of a given frequency.


When an electron falls back to its ground state how much energy is released?

It releases the same amount of energy that it absorbed when it was excited to a higher energy state.