Ionic Bonds

Which of the following best describes an ionic bond?

• Sharing of electrons between atoms

• Transfer of electrons from one atom to another

• Formation of molecules between nonmetals

• Attraction between neutral atoms

Which ion has the same electron arrangement as neon (Ne)?

• Na⁺

• Mg²⁺

• Cl⁻

• All of the above

Which element is most likely to form an ionic bond with oxygen?

• Nitrogen

• Hydrogen

• Magnesium

• Carbon

What happens to the electrons when sodium reacts with chlorine to form sodium chloride?

• Sodium loses one electron and chlorine gains one electron

• Electrons are shared equally

• Sodium gains one electron from chlorine

• No electron transfer takes place

Which of the following compounds contains ionic bonds?

• H₂O

• CH₄

• Cl₂

• NaCl

Which of the following is a correct formula for an ionic compound?

• Al₂O

• Na₂O

• CaCl

• Mg₂O

Why do ionic compounds have high melting points?

• Because of weak electrostatic forces and oppositely charged ions

• Because they consist of molecules and oppositely charged ions

• Because of strong electrostatic forces between oppositely charged ions

• Because they have simple molecular structures

What is the charge of the aluminium ion in aluminium oxide?

• +2

• +3

• +1

• +4

Which diagram correctly represents the electron transfer in the formation of calcium chloride (CaCl₂)?

• Calcium loses two electrons, each chlorine gains one electron

• Calcium gains two electrons, chlorine loses one electron

• No electrons are transferred

• Two calcium atoms transfer electrons to one chlorine atom

Which of the following statements about ionic bonds is true?

• Ionic bonds are formed between two non-metals.

• Ionic bonds involve the sharing of electrons.

• Ionic bonds form a lattice structure in solid state.

• Ionic bonds are weaker than covalent bonds.