## Exited state

$c=\lambda v$

Sophie Krylova 2J
Posts: 59
Joined: Fri Sep 29, 2017 7:06 am

### Exited state

When the electrons receive some amount of energy they "jump" to an exited state, and when they go back to their ground state they emit energy in the form of light. Why can't they just stay in the exited state if they have enough energy for it?

Sheel Shah 1H
Posts: 33
Joined: Fri Sep 29, 2017 7:04 am

### Re: Exited state

Hi there,

Electrons, like most objects, have a tendency to return to a more stable ground level. It is not possible for electrons to remain in the excited state as it is an UNSTABLE state, which they will always return from. You can think of its as analogous to "what goes up, must come down," in that electrons can be excited but will always return to their original energy level, emitting the difference (often as light).

With Kind Regards,
Sheel Shah

Mikaila 3E
Posts: 21
Joined: Fri Sep 29, 2017 7:07 am

### Re: Exited state

You can also think of it as electrons (being negatively charged) are attracted to the protons in the nucleus so they won't be able to stand being far away from them for a long period of time due to them being unstable. To be stable, the electron must return to the ground state. An electron can go into a higher energy level if the energy that it absorbs is sufficient enough to do so.

Matt_Fontila_2L_Chem14B
Posts: 39
Joined: Fri Sep 29, 2017 7:07 am

### Re: Exited state

To jump to another level, for example from n=1 to n=2, the excited electron has to be hit with enough energy to cross that threshold, right? Am I correct in believing that it won't jump into its excited state if it wasn't hit with enough energy?

Abigail Yap 2K
Posts: 51
Joined: Fri Sep 29, 2017 7:07 am

### Re: Exited state

Yes; the electron must gain energy in order to jump up an energy level (i.e. by absorbing light).

Karen Ung 2H
Posts: 52
Joined: Fri Sep 29, 2017 7:04 am
Been upvoted: 1 time

### Re: Exited state

Because the higher energy state is not as stable, the electron has a tendency to move to the ground state, where it is in closer proximity to the protons, positively charged sub-particles.

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