Emit Light

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Salma Sudarmadji 2I
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Emit Light

Postby Salma Sudarmadji 2I » Fri Oct 14, 2016 11:22 am

When light is emitted, does it always mean that the change in energy is going to be negative?


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Re: Emit Light

Postby Alexandra_Ivanova_1A » Fri Oct 14, 2016 12:06 pm

Yes, a negative energy means that light is being emitted, while a positive one means light is being absorbed.

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Re: Emit Light

Postby Alyssa_Hsu_2K » Fri Oct 14, 2016 12:56 pm

Adding on to what Alexandra said,
The reason light emitted is negative is because we have set energy=0 as a reference point. Energy=0 happens when the electron is at such a high energy that it is detached from the atomic orbital.
Hence, it is important to recognize that energy,in reality, can never be negative. It is only shown to be negative here because of its relative position to when electron energy =0.

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Re: Emit Light

Postby Jessica_Nakahira_1G » Sun Oct 30, 2016 11:26 pm

Can you clarify, when you are saying that the electron is at such a high energy it's detached from the atomic orbital, does that mean the electron is simply moving between orbitals or is it strictly saying the electron is emitted?

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