Question: Show that the radial probability density for the n = 2, = 1, m = 0 state of a one-electron atom can be written

Show that the radial probability density for the n = 2, ℓ = 1, m = 0 state of a one-electron atom can be written as P(r) = A cos² θr⁴e^{–Zr/ a0}, where A is a constant.

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