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An atom emits a photon (particle of light) when transitioning from a ground state to its excited state. To obey conservation of energy, the energy gained by the atom when an electron moves to a lower energy level is equal to the energy it loses in emitting the photon. (The energy of a photon is E = hf, where E is the energy, h is Planck's constant, and f is the frequency of the photon.) Conversely, when an atom absorbs a photon (as is the case in absorption spectra), the electron absorbing the photon moves to a higher energy level.

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13y ago
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9y ago

Absorb Energy The change of an atom from an excited state to the ground state always requires emission of electromagnetic radiation. For an electron in an atom to change from the ground state to an excited state energy must be absorbed.

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14y ago

The emission of a discrete frequency photon of light.

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10y ago

Emission of Electromagnetic Radiation. :)

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Q: What does the change of an atom from an excited state to the ground state always require?
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Related questions

How does an excited atom go back to it's ground state?

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)


What has a higher energy ground state or excited state?

ground


Why do elements go from ground state to excited state?

Elements go from the ground state to the excited state if some form of energy is supplied. Otherwise, they stay in the ground state.


Is the electron configuration of sodium an excited state or ground state?

ground state


Will the total number of electrons change when a specific element's electrons gain energy to shift from the ground state to the excited state?

No. The atom in this case i not ionised.


Do atoms in the excited state have more electrons than in the ground state?

Yes, because an atom in an excited state will normally give off energy and go to a less-excited state or to its ground state. Some atoms have long-lived excited states and are called "metastable".


What is HTE difference between an atom in the ground state and an atom in an excited state?

Atom in the ground state is stable but atom in excited state is not stable the main reason for this is their energies.Atoms in excited state has more energy so they undergo chemical reaction so they are not stable but atoms in ground state has less energy than the excited state so they dont undergo chemical reaction.


Does gravity always change the velocity of objects?

Only until they hit the ground or the floor.


What is the lowest energy state of an unbonded atom called?

Excited 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.


Does a water heater require a ground wire?

does a water heater require a ground wire?


Is an excited state is less stable than a ground state?

Yes.