True or false?
(a) The value zero is never allowed for an eigenvalue.
(b) The function f = 0 is never allowed as an eigenfunction.
(c) The symbol e stands for the charge on an electron.
(d) In the equation 〈B〉 = ∫ψ*Bψdτ, where dt = r2 sin u dr dθ dϕ, B operates on ψ only and does not operate on r2 sin θ.
(e) In the n = 1 state of an H atom, the electron moves on a circular orbit whose radius is the Bohr radius.
(f) The electron probability density at the nucleus is zero for all H-atom states.
(g) In the ground-state of an H atom, the electron is restricted to move on the surface of a sphere.
(h) For the ground-state H atom, the electron probability density is greater than zero at all locations in the atom.
(i) All the spherical harmonics Ylm are constant on the surface of a sphere centered at the origin.