Quiz about Energy Levels, Orbitals, Spin Quantum Numbers

Question 1

Which of the following includes ALL the ways quantum numbers describe electrons in an atom?

Accepted Answer

distance from the nucleus, shape, orientation, and spin

Answer

distance from the nucleus, shape, and energy

Answer

shape, orientation, and energy

Answer

energy, size, and spin

Question 2

The principal quantum number (n) primarily determines:

Accepted Answer

the energy level of the electron

Answer

the shape of the orbital

Answer

the orientation of the orbital

Answer

the spin of the electron

Question 3

An electron with n = 3 is compared to an electron with n = 1. The electron with n = 3 will, on average, be:

Accepted Answer

farther from the nucleus and have a larger orbital

Answer

closer to the nucleus

Answer

in the same energy level

Answer

impossible to determine

Question 4

What is the electron configuration of a neutral sodium atom?

Accepted Answer

$$1s^2 \, 2s^2 \, 2p^6 \, 3s^1$$

Answer

$$1s^2 \, 2s^2 \, 2p^6 \, 3s^2$$

Answer

$$1s^2 \, 2s^2 \, 2p^5 \, 3s^1$$

Answer

$$1s^2 \, 2s^2 \, 2p^6 \, 3p^1$$

Question 5

What is the electron configuration of a neutral calcium atom?

Accepted Answer

$$1s^2 \, 2s^2 \, 2p^6 \, 3s^2 \, 3p^6 \, 4s^2$$

Answer

$$1s^2 \, 2s^2 \, 2p^6 \, 3s^2 \, 3p^6 \, 4s^1$$

Answer

$$1s^2 \, 2s^2 \, 2p^6 \, 3s^2 \, 3p^5 \, 4s^2$$

Answer

$$1s^2 \, 2s^2 \, 2p^6 \, 3s^2 \, 3p^6 \, 3d^1$$

Question 6

How many energy levels are occupied in a neutral argon atom?

Accepted Answer

3

Answer

2

Answer

4

Answer

5

Question 7

What is the electron configuration of a neutral oxygen atom?

Accepted Answer

$$1s^2 \, 2s^2 \, 2p^4$$

Answer

$$1s^2 \, 2s^2 \, 2p^6$$

Answer

$$1s^2 \, 2s^2 \, 2p^5$$

Answer

$$1s^2 \, 2s^2 \, 3p^4$$

Question 8

How many energy levels are occupied in a neutral potassium atom?

Accepted Answer

4

Answer

2

Answer

3

Answer

5

Question 9

Which of the following is the correct electron configuration for a neutral iron atom?

Accepted Answer

$$[Ar] \, 4s^2 \, 3d^6$$

Answer

$$[Ar] \, 4s^2 \, 3d^5$$

Answer

$$[Ar] \, 4s^1 \, 3d^7$$

Answer

$$[Ar] \, 4s^2 \, 3d^7$$

Question 10

Which orbital can hold the most electrons?

Accepted Answer

f orbital

Answer

s orbital

Answer

p orbital

Answer

d orbital

Question 11

The spin quantum number (ms) can have two values. These values represent:

Accepted Answer

the direction of the electron's spin

Answer

the direction of the electron's movement

Answer

the energy state of the electron

Answer

whether the electron is paired with another electron

Question 12

Which of the following statements about the principal quantum number (n) is FALSE?

Accepted Answer

The principal quantum number (n) determines the maximum number of electrons an atom can hold.

Answer

Higher n values correspond to higher energy levels.

Answer

An electron with n = 1 has the lowest possible energy.

Answer

A principal quantum number (n) can have any positive integer value.

Question 13

The Aufbau Principle states that electrons fill orbitals in the order of:

Accepted Answer

increasing energy

Answer

decreasing size

Answer

increasing distance from the nucleus

Answer

all of the above

Question 14

What is the maximum number of electrons that a p orbital can hold?

Accepted Answer

6

Answer

2

Answer

10

Answer

14

Question 15

How many electrons can occupy the 4f subshell?

Accepted Answer

14

Answer

2

Answer

6

Answer

10

Energy Levels, Orbitals, Spin Quantum Numbers

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