Question 1

Which quantum number determines the shape of an atomic orbital?

Accepted Answer

The angular momentum quantum number $l$

Question 2

Which of the following orbitals has a spherical shape?

Accepted Answer

$s$ orbital

Question 3

How many $p$ orbitals are present in a single energy level?

Accepted Answer

3

Question 4

Which set of quantum numbers is valid for a $4d$ orbital?

Accepted Answer

$n = 4, l = 2$

Question 5

Which of the following statements is FALSE?

Accepted Answer

A set of $s$ orbitals contains 3 orbitals.

Question 6

Which of the following orbitals possesses the most orbital shapes?

Accepted Answer

$4f$

Question 7

If an electron is in a $3p$ orbital, what are the possible values for the magnetic quantum number $m_l$?

Accepted Answer

$-1, 0, +1$

Question 8

Which of the following best describes an orbital?

Accepted Answer

A region in an atom where electrons are most likely to be found

Question 9

How many total orbitals are present in the $n = 3$ energy level?

Accepted Answer

9

Question 10

Which of the following is a correct set of orbitals for the $n = 4$ energy level?

Accepted Answer

$4s, 4p, 4d, 4f$

Question 11

A chemist is analyzing the electron configuration of an unknown element. If the highest energy electrons are in a $3d$ orbital, which of the following could be the element?

Accepted Answer

Iron ($Z = 26$)

Question 12

Which quantum number is responsible for distinguishing between the different orientations of $p$ orbitals?

Accepted Answer

Magnetic quantum number $m_l$

Question 13

Which of the following statements about $f$ orbitals is correct?

Accepted Answer

$f$ orbitals have 7 different shapes.

Question 14

Which of the following is the correct relationship between sublevel and orbital shape?

Accepted Answer

$d$ sublevel: cloverleaf shape

Question 15

How many electrons can occupy all the $p$ orbitals in a single energy level?

Accepted Answer

6

Electron Structure: Orbitals and Their Shapes

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