Chemistry Review

What is a compound?

• A. A type of element
• B. A mixture of different elements
• C. A substance made of two or more different elements that chemically combine
• D. A substance made of two or more different elements that physically combine

What is a chemical bond?

• A. A force exerted by an atom
• B. A force exerted by a compound
• C. An attraction between atoms
• D. An attraction between different chemical substances

How do atoms form bonds?

• A. Atoms form chemical bonds through the interaction of their innermost electrons
• B. Atoms form chemical bonds through the interaction of their valence electrons
• C. Atoms form chemical bonds by fusing their nuclei together
• D. Atoms form chemical bonds by sharing protons

Why do atoms form bonds?

• A. To become positive or negative ions
• B. To become stable
• C. To achieve a full valence shell
• D. To release stored energy

What type of atoms do not readily form chemical bonds?

• A. Metals
• B. Metalloids
• C. Halogens
• D. Noble gases

How do atoms form an ionic bond?

• A. Atoms transfer electrons to form ions, which are attracted to each other
• B. Atoms transfer protons to form ions, which are attracted to each other
• C. Atoms share valence electrons
• D. Atoms share their innermost electrons

What elements most often form ionic bonds?

• A. Metals in group 1 or 2
• B. Nonmetals in group 18
• C. Nonmetals in groups 16 and 17
• D. Both A and B
• E. Both A and C

How do atoms form a covalent bond?

• A. Atoms transfer electrons to form ions, which are attracted to each other
• B. Atoms transfer protons to form ions, which are attracted to each other
• C. Atoms share valence electrons
• D. Atoms share their innermost electrons

What elements most often form covalent bonds?

• A. Metals
• B. Nonmetals
• C. Halogens
• D. Noble gases

What information can you NOT obtain from a chemical formula?

• A. What atoms are found in a single molecule
• B. How many atoms are found in a single molecule
• C. The structure of a molecule
• D. All the pieces of information above can be obtained from a chemical formula