Metallic Bonds and the Properties of Metals

A metallic bond is a bond between ________.

• nonmetals

• metals

• transition metals

• metalloids

Which of the following is NOT a property of metals?

• Hard

• Can conduct electricity

• Very brittle (breaks easily)

• Malleable (can bend without breaking)

What do electrons do in a metallic bond?

• They stay on the metal atom.

• They are transferred from atom to atom.

• They form a covalent bond with another atom.

• They float around freely.

What is meant by the term "sea of electrons"?

• It's what we call all the free floating electrons in a metal.

• It's what we call electrons that are floating in a liquid.

• It's the total number of electrons in a metal atom.

• It's the total number of electrons in the ocean.

Why are metals good conductors of electricity?

• The electric current can easily travel along the surface of the metal because it is smooth.

• A negative charge can easily push the sea of electrons in one direction, making a current.

• Metals attract electricity.

• Metals are malleable.

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Why are metals malleable? (They can bend without breaking.)

• Metals are very smooth.

• Metals have a sea of electrons.

• The sea of electrons form a strong metallic bond.

• Even though the metal ions repel each other, the electron sea holds all the atoms in place.

What do we call electrons that move freely in a metallic bond?

• sea of electrons

• lone electrons

• unpaired electrons

• covalent electrons

What property of metals is the image describing?

• malleable (bend without breaking)

• ductile (stretched into a wire)

• conductive (can conduct electricity)

• shiny

What property of metals is being shown in figure 1(b) in the image?

• malleable (bend without breaking)

• ductile (stretched into a wire)

• conductive (can conduct electricity)

• shiny

What is the one thing responsible for a metal being malleable, ductile, and conductive?

• metal atoms

• its covalent bonds

• its valence electrons

• its sea of free-floating electrons