Unit 4 Chemical Bonds Test #1: Concepts 1-3

Which of the following best describes the atoms involved in the formation of a covalent bond?

• A. Nonmetals only

• B. A metal and a nonmetal

• C. Metals only

• D. Charged atoms or groups of atoms

Which of the following best describes the atoms involved in the formation of an ionic bond?

• Nonmetals only

• A metal and a nonmetal

• Metals only

• Uncharged atoms or groups of atoms

Which of the following best describes the atoms involved in the formation of a metallic bond?

• Nonmetals only

• A metal and a nonmetal

• Metals only

• Charged atoms or groups of atoms

The picture to the right best represents a(n) __________ bond.

• metallic

• ionic

• covalent

• hydrogen

Tags

NGSS.HS-PS1-3

Which of the following elements has the least ionic character?

• O₂

• H₂O

• KCl

• CuF₂

Tags

NGSS.HS-PS1-3

Which of the following statements is true about cations?

• Typically nonmetals

• Typically metals

• Tend to share electrons

• Tend to have negative oxidation numbers

Electrons are considered delocalized when in a(n) (a)   bond.

• metallic
• ionic

• chemical

• covalent

An unknown substance is solid at room temperature, has a high melting point, and can conduct electricity but only when dissolved in water. This substance is most likely a(n) (a)   .

• noble gas

• ionic compound

• covalent compound

• metallic compound

Tags

NGSS.HS-PS1-3

Which of the following statements best describes an ionic bond?

• A bond formed when electrons are shared between atoms.

• A bond formed by the transfer of electrons from one atom to another.

• A bond formed by the overlap of electron orbitals.

• A bond formed when electronegativity differences are small.

Tags

NGSS.HS-PS1-3

An unknown substance is solid at room temperature, is a strong absorber and reflector of light, and can conduct electricity and thermal energy easily. This substance is most likely a ​ (a)   .

• noble gas

• ionic compound

• covalent compound

• metal

Tags

NGSS.HS-PS1-1