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Worksheets

Quantum

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.

Which of the following sets of quantum numbers (n, l, ml, and ms) describes the valence electron of Na?

a)

2, 1, 0, -½

b)

2, 0, 0, -½

c)

3, 1, 1, +½

d)

3, 0, 0, +½

2.

Which of the following sets of quantum numbers (n, l, ml, and ms) describes the valence electron of 4s1?

a)

2, 0, 0, +1/2

b)

2, 1, 0, +1/2

c)

4, 0, 0, +1/2

d)

4, 1, 1, +1/2

3.

Which of the following sets of quantum numbers (n, l, ml, and ms) describes the electron 3p6?

a)

3, 1, 0, - 1/2

b)

3, 1, -1, -1/2

c)

1, 2, -1, -1/2

d)

1, 3, -1, -1/2

4.

There may be a maximum of ____ p orbitals at a given energy level.

a)

2

b)

6

c)

3

d)

8

5.

Which of the following best describes quantum entanglement?

a)

Particles that are entangled can communicate faster than light.

b)

Entangled particles remain connected such that the state of one instantly influences the state of the other, regardless of distance.

c)

Entangled particles are always in the same location.

d)

Entangled particles cannot be separated.

6.

Imagine you are tasked with explaining the concept of quantum entanglement to a group of high school students. Design a simple experiment or demonstration that illustrates the principles of quantum mechanics, including the materials needed and the expected outcomes.

a)

Use polarized sunglasses and laser pointers to demonstrate how entangled photons react similarly, even when separated, illustrating non-local interactions.

b)

Drop two balls of different masses from the same height to demonstrate gravity's effect, comparing it to classical mechanics without addressing quantum principles.

c)

Use a double-slit experiment setup with a laser and a screen to show wave-particle duality, explaining how it leads to the concept of superposition but not directly addressing entanglement.

d)

Create a computer simulation of the solar system to demonstrate orbital mechanics, focusing on large-scale phenomena rather than quantum-level interactions.

7.

What is the fundamental difference between the Bohr model of an atom and the quantum mechanical model? Select all that apply.

a)

Bohr model considers electron to be a particle; quantum mechanics considers it to be a wave.

b)

Bohr model describes electron with 1 quantum number; quantum model uses 4 quantum.

c)

Bohr model describes electrons in orbits; quantum model describes electrons in orbitals.

8.

In the quantum mechanical model of the atom, where are electrons most likely to be found?

a)

Moving in fixed orbits around the nucleus

b)

Embedded within the nucleus

c)

In specific regions called electron clouds or orbitals

d)

Uniformly distributed around the nucleus

9.

Whose model is based on the Uncertainty Principle?

a)

Schrodinger / Heisenberg

b)

Bohr

c)

Rutherford

d)

Thomson

10.

In the quantum-mechanical model of the atom, an orbital is defined as a

a)

region of the most probable proton location.

b)

region of the most probable electron location.

c)

circular path traveled by an electron around an orbital.

d)

circular path traveled by a proton around an orbital.

11.

What is similar about the Bohr model of the atom and the quantum mechanics model? Both consider

a)

electrons to be a particle in a definite position at a given time.

b)

electrons to emit a photon when moving from a higher state to a lower state.

c)

electrons to be particles moving in circular orbits.

d)

electrons to be spread out in space that can be described by quantum numbers.

12.

When are photons of light released?

a)

When electrons move from the ground state to the excited state

b)

When electrons move from the excited state to the ground state

c)

When electrons stay in the same orbital.

d)

When the distance to the nucleus increases.

13.

Who published a theory explaining the photoelectric effect in 1905?

a)

Niels Bohr

b)

Albert Einstein

c)

Isaac Newton

d)

Max Planck

14.

The spin of an electron is represented by this variable:

a)

n

b)

m

c)

L

d)

s, ms

15.

The principle quantum number, n, represents the:

a)

spin value

b)

suborbital value

c)

energy level

d)

magnetic value

16.

How many electrons total are found in the f orbital?

a)

2

b)

6

c)

10

d)

14

17.

How many electrons are in 1s2 2s2 2p4?

a)

5

b)

6

c)

8

d)

13

18.

If n = 1, what are the allowed values of L? select all that apply

a)

0

b)

1

c)

2

d)

3

19.

If n = 2, what are the allowed values of L? select all that apply

a)

-1, 0, 1

b)

-2

c)

2

d)

3

20.

What is the correct representation for an orbital which has an "n" value of 3 and an "l" value of 1?

a)

3s

b)

3p

c)

3d

d)

3f

21.

A subshell containsing 7 orbitals is called ... subshell.

a)

s

b)

p

c)

d

d)

f

22.

Which of the following principles is fundamental to quantum mechanics?

a)

Heisenberg Uncertainty Principle

b)

Archimedes' Principle

c)

Pascal's Principle

d)

Bernoulli's Principle

23.

What is the primary difference between classical and quantum physics?

a)

Classical physics describes macroscopic phenomena, while quantum physics describes microscopic phenomena.

b)

Classical physics is deterministic, while quantum physics is probabilistic.

c)

Classical physics uses Newton's laws, while quantum physics uses Einstein's theories.

d)

Classical physics is based on wave theory, while quantum physics is based on particle theory.

24.

In the double-slit experiment, what phenomenon demonstrates the wave-particle duality of light?

a)

Interference pattern

b)

Photoelectric effect

c)

Compton scattering

d)

Blackbody radiation

25.

Which of the following particles is considered a force carrier in quantum field theory?

a)

Photon

b)

Electron

c)

Neutron

d)

Proton