Quiz on Chemical Bonds

What are two differences between ionic and covalent bonds?

• Ionic bonds involve sharing electrons; covalent bonds involve transferring electrons.

• Ionic bonds involve transferring electrons; covalent bonds involve sharing electrons.

• Ionic bonds involve only nonmetallic elements; covalent bonds involve metallic and nonmetallic elements.

• Ionic bonds involve sharing electrons; covalent bonds involve only metallic elements.

Why is the octet rule important in determining how atoms bond?

• It helps atoms gain protons.

• It allows atoms to lose neutrons.

• It provides a stable electron configuration.

• It makes atoms unstable.

Why do noble gases not react easily?

• They have a full set of electrons in their outer shell.

• They lack electrons in their outer shell.

• They have an unstable electron configuration.

• They need more electrons to be stable.

What happens to metals when they become ions?

• They become anions.

• They become cations.

• They remain neutral.

• They become nonmetals.

What type of bond forms when metals and nonmetals react?

• Covalent bond

• Metallic bond

• Ionic bond

• Hydrogen bond

How many electrons does an element in Group 1a (1) lose to achieve an octet?

• 1

• 2

• 3

• 4

Which group gains 3 electrons to achieve an octet?

• 5a (15)

• 6a (16)

• 7a (17)

• 2a (2)

What is one property of ionic compounds?

• They form a crystal lattice and are solid at room temperature.

• They are gases at room temperature.

• They have low melting points.

• They do not conduct electricity when dissolved.

Metallic bonds form between which type of elements?

• Metals

• Non-metals

• Metalloids

• Noble gases

What are the properties of a metallic bond?

• Can conduct electricity, Malleable, Ductile, High melting point, Specific crystal structure

• Brittle, Non-conductive, Low melting point, Amorphous structure

• Insulating, Brittle, Low density, Non-crystalline

• Non-malleable, Non-ductile, Low melting point, Non-conductive