We can also figure out the energy of this orbital here, and the energy is equal to the Rydbergconstant.
我们还可以在这里计算出该轨道的能量，该能量等于里德堡常数。
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So, if we just rearrange this equation, what we find is that z effective is equal to n squared times the ionization energy, IE all over the Rydbergconstant and the square root of this.