TEST - Chemical Bonds

What occurs during the formation of an ionic bond?

• Sharing of electron pairs between atoms

• Transfer of electrons from one atom to another

• Sharing of protons between molecules

• Transfer of neutrons from one atom to another

Which of the following is a characteristic of covalent bonds?

• They occur between metals and nonmetals.

• They involve the sharing of electron pairs between atoms.

• They result in the formation of a metallic lattice.

• They involve the transfer of electrons from one atom to another.

Which of the following is an example of a polyatomic ion?

• NaCl

• Mg

Ionic bonds typically form between which types of elements?

• Two metals

• Two nonmetals

• A metal and a nonmetal

• A metalloid and a nonmetal

Which statement best describes covalent bonds?

• They form between ions of opposite charge.

• They involve the sharing of electrons between atoms.

• They are typically found in compounds formed from metals.

• They result in the formation of a crystal lattice structure.

Which of the following is NOT a property of ionic compounds?

• High melting points

• Good electrical conductivity in the solid state

• Formation from a metal and a nonmetal

• Solubility in water

What type of bond is formed when two atoms share three pairs of electrons?

• Single covalent bond

• Double covalent bond

• Triple covalent bond

• Ionic bond

Which of the following elements is most likely to form an ionic bond with chlorine (Cl)?

• Carbon (C)

• Oxygen (O)

• Sodium (Na)

• Hydrogen (H)

Which of the following is a polyatomic ion?

What is the main reason ionic compounds are brittle?

• The strong repulsion between ions of the same charge

• The weak attraction between ions of opposite charge

• The mobility of their delocalized electrons

• The rigid structure of their crystal lattice