Negative sign in front of Bohr Frequency Condition

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Marsenne Cabral 1A
Posts: 59
Joined: Fri Sep 28, 2018 12:19 am

Negative sign in front of Bohr Frequency Condition

Postby Marsenne Cabral 1A » Mon Oct 15, 2018 11:48 am

Is the negative symbol in front of the equation just a symbol that there is an energy decrease, and the actual energy of each level is still positive, or is there another explanation?

Ray Guo 4C
Posts: 90
Joined: Fri Sep 28, 2018 12:15 am

Re: Negative sign in front of Bohr Frequency Condition

Postby Ray Guo 4C » Mon Oct 15, 2018 12:23 pm

The energy is still positive. It's just a convention to set the energy of free electrons as 0, which makes electrons in atoms have negative values when the formula you mentioned is applied.

AlyssaBei_1F
Posts: 99
Joined: Fri Sep 28, 2018 12:17 am

Re: Negative sign in front of Bohr Frequency Condition

Postby AlyssaBei_1F » Mon Oct 15, 2018 2:34 pm

The negative sign means the bound electron has lower energy than the free electron. The energy is still positive.

Sarah Zhao 4C
Posts: 64
Joined: Fri Sep 28, 2018 12:28 am

Re: Negative sign in front of Bohr Frequency Condition

Postby Sarah Zhao 4C » Mon Oct 15, 2018 3:15 pm

Negative because the energy of the electron is decreasing but the energy is positive because it is being released as a photon

Erin Nash - 4G
Posts: 29
Joined: Fri Sep 28, 2018 12:27 am

Re: Negative sign in front of Bohr Frequency Condition

Postby Erin Nash - 4G » Mon Oct 15, 2018 3:19 pm

The photon energies are always positive, but the negative signs accounts for the bound electron having a lower energy than a free electron.


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