# Physics

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What is the probability density at the fifth carbon atom if the electron is in the n=2 energy level?

I have the formula as follows:
Probability density = p5= (2/1.65) sin^2 (4x2pi/11)
I know the final answer is 0.69 nm -1. However, I do not know how to retrieve this final answer using my calculator.. can someone help me please?

• Physics -

I punched it into mine, and it worked.

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