1. Consider the effective potential
What will be the effect of nonzero angular momentum
on the electron?
(A) electron will have large probability at the nucleus
(B) electron has extremely low probability to approach nucleus

2. Consider the effective potential
What will be the effect of nonzero angular momentum
on the electron?
(A) electron will have large probability at the nucleus
(B) electron has extremely low probability to approach nucleus
ħ2ℓ(ℓ+1) / 2mr2
-e2 / 4pe0r

3. How does the probability density
look like at the nucleus?
(A) There is a maximum at the nucleus for s-electrons, but it is zero for ℓ > 0 electrons with ℓ > 0 (p,d,f, etc.)
(B) There is a maximum at the nucleus for all orbitals
(C) The probability density is zero at the nucleus.

4. How does the probability density
look like at the nucleus?
(A) There is a maximum at the nucleus
for s-electrons, but it is zero
for ℓ > 0 electrons with ℓ > 0
(p,d,f, etc.)
(B) There is a maximum at the nucleus
for all orbitals
(C) The probability density is zero
at the nucleus.
... because of the factor r2 in the
above expression (r = 0 at the
nucleus).