1. Consider the transition Ar (3p)6, 1S0 → Ar (3p)5 (4p), 1P1
Is it an allowed transition, and if not, why not?
(A) allowed
(B) not allowed, because no spin change
(C) not allowed, because promoting a p-electron to another p-orbital
(D) not allowed, because J=0 → J=1
(E) not allowed, because S → P

2. Consider the transition Ar (3p)6, 1S0 → Ar (3p)5 (4p), 1P1
Is it an allowed transition, and if not, why not?
(A) allowed
(B) not allowed, because no spin change
this would be allowed
(C) not allowed, because promoting a p-electron to another p-orbital
(D) not allowed, because J=0 → J=1
(E) not allowed, because S → P

3. Consider the transition He (1s)(2p), 1P1 → He (1s)(4s), 1P1
Is it an allowed transition, and if not, why not?
(A) allowed
(B) not allowed, because n changes by 3, should change by ±1
(C) not allowed, because J=1 → J=1
(D) not allowed, because P → P

4. Consider the transition He (1s)(2p), 1P1 → He (1s)(4s), 1P1
Is it an allowed transition, and if not, why not?
(A) allowed
(B) not allowed, because n changes by 3, should change by ±1
there is no rule for changing n
(C) not allowed, because J=1 → J=1
DJ = 0 is allowed, as long as it’s not J=0 →J=0
(D) not allowed, because P → P
DL = 0 is allowed

5. After solving the electronic problem for H2+ within the BOA,
we obtain the electronic energy eigenvalues E(R) as a function of
the internuclear distance R. Now, we want to solve the problem
of nuclear motion. What is the Hamiltonian for this problem?
(A) where the problem is reduced to a one-particle problem with the reduced mass µ and the corresp.
1-particle Laplace operator
(B)
(C)
(D) both (A) and (B) are correct formulations

6. After solving the electronic problem for H2+ within the BOA,
we obtain the electronic energy eigenvalues E(R) as a function of
the internuclear distance R. Now, we want to solve the problem
of nuclear motion. What is the Hamiltonian for this problem?
(A) where the problem is reduced to a one-particle problem with the reduced mass µ and the corresp.
1-particle Laplace operator
(B)
(C) The internuc. repulsion is missing here!
(D) both (A) and (B) are correct formulations