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## Main Question or Discussion Point

Using the ground state of the hydrogen atom

Psi 1,0,0 = sqrt([pi]*a

I get <r> the expected radius as <r> = 3a/2 where a = Bohr radius.

Anybody happen to know if this correct?

It would have been cooler if the Bohr radius in physical constants were <r> and the scale factor were in Psi 1,0,0.

Psi 1,0,0 = sqrt([pi]*a

^{3}) * e^{-r/a}I get <r> the expected radius as <r> = 3a/2 where a = Bohr radius.

Anybody happen to know if this correct?

It would have been cooler if the Bohr radius in physical constants were <r> and the scale factor were in Psi 1,0,0.