Chemical Bonds Quiz

Which type of bond forms when one atom donates an electron and another atom accepts it?

• Covalent bond

• Ionic bond

• Metallic bond

• Hydrogen bond

In a covalent bond, atoms are held together by sharing…

• Protons

• Neutrons

• Electrons

• Energy

The Lewis dot symbol for oxygen (atomic number 8) has how many valence electrons?

• 2

• 4

• 6

• 8

What does each dot in a Lewis symbol represent?

• A proton

• A neutron

• A valence electron

• A nucleus

Which of the following represents a single covalent bond?

• O=O

• H–H

• N≡N

• Cl··Cl

Which pair of elements is most likely to form an ionic bond?

• H and O

• C and H

• Na and Cl

• N and O

What is the total number of shared electrons in a double bond?

• 1

• 2

• 4

• 6

Why do atoms form chemical bonds?

• To lose energy

• To gain protons

• To achieve a stable electron configuration

• To increase atomic size

Which of the following molecules contains a triple bond?

• H₂

• O₂

• N₂

• Cl₂

In a Lewis structure, what does a line (–) between two atoms represent?

• A shared pair of electrons

• An ionic attraction

• A proton exchange

• A lone pair of electrons