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Postby 905085650 » Sun Oct 14, 2018 5:10 pm

In the equation E(n)=-hR/n^2, where does the negative come from?

Thank you!

Diviya Khullar 1G
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Re: E(n)=-hR/n^2

Postby Diviya Khullar 1G » Sun Oct 14, 2018 5:16 pm

The negative sign is there because a bound electron has lower energy than a free electron. So, it is there to represent the negative change in energy.

Ibrahim Malik 1H
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Re: E(n)=-hR/n^2

Postby Ibrahim Malik 1H » Sun Oct 14, 2018 5:19 pm

As electrons fall from orbitals (for example, n=2 to n=2), the electrons lose energy, hence the negative sign within Bohr's Equation. The negative sign basically signifies energy being lost in the system.

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Re: E(n)=-hR/n^2

Postby CaminaB_1D » Sun Oct 14, 2018 7:43 pm

What does the 'h' represent here in this equation?

Sorry, disregard this question. I knew it was Planck's constant, just had it rounded in my notes

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