a, the quantum length scale, has units of length, so therefore r/2a is unitless, just like 1. So the units are the same for those two terms. I think the units are discussed in more detail in the videos on integrals and on expectation values.
a, the quantum length scale, has units of length, so therefore r/2a is unitless, just like 1. So the units are the same for those two terms. I think the units are discussed in more detail in the videos on integrals and on expectation values.
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