ChemistryChemical Bonding
Learn Mode

Molecular Structures and Electron Arrangement Quiz

Go to Quiz Page
#1

How many valence electrons does an atom of oxygen have?

6
Explanation

Oxygen has 6 valence electrons.

#2

What is the molecular geometry of a molecule with the formula CH4?

Tetrahedral
Explanation

CH4 adopts a tetrahedral molecular geometry.

#3

What is the maximum number of electrons that can occupy the p sublevel?

14
Explanation

The p sublevel can accommodate a maximum of 14 electrons.

#4

Which of the following statements about ionic bonds is true?

They result from the attraction between oppositely charged ions.
Explanation

Ionic bonds result from the attraction between oppositely charged ions.

#5

What is the maximum number of electrons that can occupy the second energy level (n=2) in an atom?

8
Explanation

The maximum number of electrons in the second energy level is 8.

#6

Which of the following elements has the highest electronegativity?

Chlorine
Explanation

Chlorine has the highest electronegativity value.

#7

In the Lewis dot structure for water (H2O), how many lone pairs are present on the oxygen atom?

1
Explanation

There is 1 lone pair on the oxygen atom in H2O.

#8

What is the bond angle in a molecule with a trigonal planar molecular geometry?

120 degrees
Explanation

The bond angle is 120 degrees in a trigonal planar molecule.

#9

What is the hybridization of the carbon atom in methane (CH4)?

sp3
Explanation

The carbon atom in CH4 undergoes sp3 hybridization.

#10

Which of the following molecules exhibits hydrogen bonding?

H2O
Explanation

H2O exhibits hydrogen bonding.

#11

What is the electron configuration of oxygen?

1s² 2s² 2p⁴
Explanation

The electron configuration of oxygen is 1s² 2s² 2p⁴.

#12

Which of the following is a paramagnetic species?

O2
Explanation

O2 is a paramagnetic species.

#13

Which of the following elements has the highest first ionization energy?

Phosphorus
Explanation

Phosphorus has the highest first ionization energy.

#14

Which of the following molecules has a trigonal bipyramidal molecular geometry?

PCl5
Explanation

PCl5 exhibits trigonal bipyramidal molecular geometry.

#15

What is the shape of a molecule with three bonding pairs and one lone pair of electrons on the central atom?

Trigonal Pyramidal
Explanation

The shape is trigonal pyramidal.

#16

Which of the following is not a type of hybridization?

dsp3
Explanation

dsp3 is not a type of hybridization.

#17

What is the formal charge on the oxygen atom in the nitrate ion (NO3-)?

-1
Explanation

The formal charge on the oxygen atom is -1.

Test Your Knowledge

Craft your ideal quiz experience by specifying the number of questions and the difficulty level you desire. Dive in and test your knowledge - we have the perfect quiz waiting for you!