Question

327 chemistry prep b
unit 3 ch. 5 test
directions:
choose the best answer to each question. use the scantron to bubble in your answers.
matching:
for questions, 1 - 8, match the correct letter choice with the statement on the left.

1. representation of the electrons in an atom using boxes and arrows.
2. there are seven of these and they range from 1 to 7
3. the arrangement of electrons using the aufbau diagram.
4. the bottom or lowest point on a wave.

matching
for questions, 5 - 8, match the correct letter choice with the statement on the left

1. range of electromagnetic radiation that can be detected by the human eye.
2. the electrons in an atoms outermost orbitals.
3. the shortest distance between equivalent points on a wave.
4. the height of a wave from its origin to its crest.

multiple choice: select the letter choice that best answers the question or completes the statement.

1. the f - sublevel can hold up to ____ electrons

a. 2 b. 6 c. 10 d. 14

1. the s - sublevel can hold up to ____ electrons

a. 1 b. 2 c. 5 d. 6

1. the \8\ in 3d^8 represents the

a. sublevel b. number of electrons c. group number d. principle energy
level

1. the p - sublevel can hold up to ____ electrons

a. 8 b. 10 c. 6 d. 3

1. what is the total number of sublevels possible in the fourth principle energy level?

hint: you may want to use your aufbau diagram on the last page to help you answer this question.
a. 1 b. 2 c. 3 d. 4

1. the ____ states that all orbitals in a sublevel must be singly filled with an electron before any

orbitals receive a second electron.
a. pauli exclusion principle b. aufbau principle c. hunds rule

1. the ____states that each electron occupies the lowest energy orbital available.

a. pauli exclusion principle b. aufbau principle c. hunds rule

1. the ____ states that a maximum of two electrons can occupy a single atomic orbital, but only if the

electrons have opposite spins.
a. pauli exclusion principle b. aufbau principle c. hunds rule

1. which wave has the shortest wavelength, a, b or c?

a. b. c.

1. which wave has the smallest frequency, a, b or c?

a. b. c.

Explanation:

• Question 1: Orbital Diagram uses boxes and arrows to represent electrons.
• Question 2: There are 7 Energy Levels (n = 1 to 7).
• Question 3: Electron Configuration is based on Aufbau diagram.
• Question 4: Trough is the lowest point of a wave.
• Question 5: Visible light is the range detected by human eye.
• Question 6: Valence Electrons are in outermost orbitals.
• Question 7: Wavelength is the shortest distance between equivalent wave points.
• Question 8: Amplitude is wave height from origin to crest.
• Question 9: f - sublevel has 7 orbitals, each holding 2 electrons (7×2 = 14).
• Question 10: s - sublevel has 1 orbital, holding 2 electrons.
• Question 11: In \(3d^8\), "8" is number of electrons.
• Question 12: p - sublevel has 3 orbitals, holding 6 electrons (3×2).
• Question 13: Fourth energy level (n = 4) has 4 sublevels (s, p, d, f).
• Question 14: Hund's rule: single - fill orbitals first.
• Question 15: Aufbau principle: electrons occupy lowest energy orbitals.
• Question 16: Pauli exclusion principle: max 2 electrons per orbital with opposite spins.
• Question 17: Wave a has shortest wavelength (more oscillations in same space).
• Question 18: Wave c has smallest frequency (least oscillations).

Answer:

1. c. Orbital Diagram
2. a. Energy Levels
3. d. Electron Configuration
4. b. Trough
5. b. Visible light
6. a. Valence Electrons
7. c. Wavelength
8. d. amplitude
9. d. 14
10. b. 2
11. b. number of electrons
12. c. 6
13. d. 4
14. c. Hund's rule
15. b. Aufbau principle
16. a. Pauli exclusion principle
17. a
18. c