o8792954Lv1

5 Apr 2023

Directions: Follow the instructions in Parts A, B, and C below to complete the assignment.

Part A

Directions: Answer each of the following questions.

1. How many electrons in a silicon atom have n = 3 as one of their quantum numbers?

2. How many electrons in a potassium atom have l = 0 as one of their quantum numbers?

3. How many electrons in a mercury atom have n = 4 as one of their quantum numbers?

Part B

Directions: Choose the correct electron configurations for the atoms and ions.

4. Bi

a) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p3

b) 1s2 2s2 3s2 2p6 3s2 3p6

c) 1s2 2s2 sp6 3s2 3p6 4s2 3d7

d) 1s2 2s2 3s2 2p6 3s2 3p6

5. Co

a) 1s2 2s2 3s2 2p6 3s2 3p6

b) 1s2 2s2 2p6 3s2 3p6

c) 1s2 2s2 2p6 3s2 3p6 4s2 3d7

d) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p3

6. P-3

a) 1s2 2s2 2p6 3s2 3p6

b) 1s2 2s2 3s2 2p6 3s2 3p6

c) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p3

d) 1s2 2s2 sp6 3s2 3p6 4s2 3d7

7. K+1

a) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p3

b) 1s2 2s2 2p6 3s2 3p6

c) 1s2 2s2 sp6 3s2 3p6 4s2 3d7

d) 1s2 2s2 3s2 2p6 3s2 3p6

8. Which member of each pair has the greater negative electron affinity?

a) Se or Br

b)Si or Al

c)Na or Cl

9. Which member of each pair has the larger radius?

a) Ca or Mg

b) Al or P

c) F-1 or F

10. Which member of each pair has the higher ionization energy?

a) He or Ne

b) Na or Mg

c) Ca or Ca +2

Part C

Directions: Write the complete ground-state electron configurations for the following:

11. lithium

12. oxygen

13. titanium

14. erbium