3,2,-2,1/2 3,2,1,0 4,2,1,1/2 2,3,1,1/2 3,0,0,1/2 0,2,0,1/2 2,1,-1,1/2 4,3,-4,1/2

Question

3,2,-2,1/2 3,2,1,0 4,2,1,1/2 2,3,1,1/2 3,0,0,1/2 0,2,0,1/2 2,1,-1,1/2 4,3,-4,1/2 2,-2,-2,-1/2 3,3,-2,-1/2 2,2,1,-1/2 2,1,-1,-1/2
which one of these are valid?


Part B))) Identify the sets of quantum numbers that describe all the electrons in the ground state of a neutral beryllium atom, Be. Each set is ordered (n,?,m?,ms).

(2,0,0,1/2) (2,1,-1,1/2) (1,0,0,-1/2) (2,1,-1,-1/2) (2,1,0,1/2) (2,0,0,-1/2) (1,0,0,1/2) (2,1,0,-1/2)
(n,?,m?,ms).

(2,0,0,1/2) (2,1,-1,1/2) (1,0,0,-1/2) (2,1,-1,-1/2) (2,1,0,1/2) (2,0,0,-1/2) (1,0,0,1/2) (2,1,0,-1/2)
3,2,-2,1/2 3,2,1,0 4,2,1,1/2 2,3,1,1/2 3,0,0,1/2 0,2,0,1/2 2,1,-1,1/2 4,3,-4,1/2 2,-2,-2,-1/2 3,3,-2,-1/2 2,2,1,-1/2 2,1,-1,-1/2
which one of these are valid?


Part B))) Identify the sets of quantum numbers that describe all the electrons in the ground state of a neutral beryllium atom, Be. Each set is ordered (n,?,m?,ms).

(2,0,0,1/2) (2,1,-1,1/2) (1,0,0,-1/2) (2,1,-1,-1/2) (2,1,0,1/2) (2,0,0,-1/2) (1,0,0,1/2) (2,1,0,-1/2)

Explanation / Answer

A)

3,2, -2,1/2

4,2,1,1/2

3,0,0,1/2

2,1,-1,1/2

2,1,-1,-1/2

are correct.

B)

(2,0,0,1/2) (1,0,0,-1/2) (2,0,0,-1/2) (1,0,0,1/2)

note:

Be has 1s2 2s2 electron configuration. (1,0,0,-1/2) (1,0,0,1/2) represent two 1s electrons. (2,0,0,-1/2) (2,0,0,1/2) represent two 2s electrons.

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.