Question 1

Which of the following best describes the shape of a 1s atomic orbital?

Accepted Answer

A spherical shape centered around the nucleus

Question 2

The 2p atomic orbitals are characterized by which of the following features?

Accepted Answer

They have two lobes separated by a nodal plane passing through the nucleus

Question 3

Which quantum number determines the shape of an atomic orbital?

Accepted Answer

Angular momentum quantum number $$l$$

Question 4

How many nodal planes does a $$d_{xy}$$ orbital have?

Accepted Answer

Two

Question 5

Which of the following orbitals has a spherical node?

Accepted Answer

2s orbital

Question 6

The $$f_{x^3$}$$ orbital is part of which principal quantum number shell?

Accepted Answer

$$n = 4$$

Question 7

Which orbital type is first present in the $$n = 3$$ shell?

Accepted Answer

d orbital

Question 8

A 3s orbital differs from a 2s orbital in which of the following ways?

Accepted Answer

It has more spherical nodes

Question 9

Which of the following statements about the $$d_{z^2$}$$ orbital is correct?

Accepted Answer

It has a toroidal (donut-shaped) region around the nucleus

Question 10

Which orbital has the greatest number of angular nodes?

Accepted Answer

f orbital

Question 11

The probability of finding an electron at the nucleus is zero for which orbital?

Accepted Answer

2p orbital

Question 12

Which of the following best explains why the 2s orbital has a radial node?

Accepted Answer

The wavefunction changes sign at a certain radius from the nucleus

Question 13

Which of the following orbitals is NOT present in the $$n = 2$$ shell?

Accepted Answer

2d

Question 14

How many different orientations are possible for d orbitals in a given shell?

Accepted Answer

Five

Question 15

Which of the following orbitals has a nodal plane that passes through the nucleus and is perpendicular to the x-axis?

Accepted Answer

$$p_y$$ orbital

Question 16

The radial distribution function for a 2p orbital shows maximum probability at a certain distance from the nucleus. What does this indicate?

Accepted Answer

Electrons are most likely found at a certain radius away from the nucleus

Question 17

Which of the following is true about the shapes of f orbitals?

Accepted Answer

They have complex shapes with multiple lobes and nodal planes

Question 18

Which orbital is responsible for the cloverleaf pattern observed in some transition metal complexes?

Accepted Answer

d orbital

Question 19

If an electron is in a $$d_{xz}$$ orbital, what is the orientation of its lobes?

Accepted Answer

Along the x and z axes

Question 20

Which of the following statements about atomic orbitals is correct?

Accepted Answer

All p orbitals have a nodal plane passing through the nucleus

Chapter 2.6: Shapes of Atomic Orbitals

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