Molecular Structures and Electron Arrangement Quiz

Test your knowledge with questions on electronegativity, molecular geometry, hybridization, and more in this chemical bonding quiz.

#1

How many valence electrons does an atom of oxygen have?

4
6
8
10
#2

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

Linear
Tetrahedral
Trigonal Planar
Octahedral
#3

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

2
6
10
14
#4

Which of the following statements about ionic bonds is true?

They involve the sharing of electrons between atoms.
They result from the attraction between oppositely charged ions.
They are weaker than covalent bonds.
They occur only between nonmetal atoms.
#5

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

2
8
18
32
#6

Which of the following elements has the highest electronegativity?

Sodium
Chlorine
Carbon
Potassium
#7

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

0
1
2
3
#8

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

90 degrees
109.5 degrees
120 degrees
180 degrees
#9

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

sp
sp2
sp3
sp3d
#10

Which of the following molecules exhibits hydrogen bonding?

CO2
NH3
CH4
H2O
#11

What is the electron configuration of oxygen?

1s² 2s² 2p³
1s² 2s² 2p⁴
1s² 2s² 2p⁵
1s² 2s² 2p⁶
#12

Which of the following is a paramagnetic species?

O2
N2
H2
F2
#13

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

Sodium
Aluminum
Silicon
Phosphorus
#14

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

CH4
NH3
PCl5
SF6
#15

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

Linear
Trigonal Planar
Tetrahedral
Trigonal Pyramidal
#16

Which of the following is not a type of hybridization?

sp
sp2
dsp3
sp3d2
#17

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

+1
-1
+2
-2

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