Metallic Bonds

Metallic Bonds

Metallic Bonds

sea of electrons

Metallic Bonds

solid with high melting point (mercury is the exception)

Metallic Bond

electrical conductivity

Metallic Bond

Heat conductivity

Metallic Bond

Malleable

Metallic Bond

ductile

Metallic Bond

High density

Metallic Bond

highly reactive with oxygen

Metallic Bond

Alloys "solution of metals"

Multiple Choice

There are more metals than non metals in the periodic table.

• True
• False

Multiple Choice

What is the ability of a substance to allow heat, sound, or electricity to flow through it?

• Malleability
• Ductility
• Solubility
• Conductivity

Multiple Choice

At room temperature, most metals are

• liquid
• solid
• gas
• an alloy

Multiple Choice

Metals are hard because metals have a

• sea of electrons that tightly hold the nuclei together

• they form triple bonds

• low melting point

• high luster

Multiple Choice

Alloys are important because

• their properties are often superior to the component elements

• their properties are a blend of the component elements

• they never corrode

• they are less expensive than their component elements.

Multiple Choice

In metallic bonds electrons are:

• shared

• move around the nuclei randomly

• transferred

Multiple Choice

Why does copper wire conduct electricity when a potential difference is applied?

• The crystal lattice breaks down

• Copper (II) ions move to the cathode

• The atoms of copper become ionised

• Bonding electrons in the crystal lattice move

Multiple Choice

Why are metals malleable?

• The metal ions can easily slide past one another

• The metal ions cannot easily slide past one another

• The metal ions repel one another

• The metal ions attract one another

Multiple Choice

What does malleable mean?

• Breaks easily

• Always stays in the same shape

• Can be drawn into wires

• Can be forced into a certain shape without breaking

Multiple Choice

Metals conduct electricity because

• the metal ions are free to travel

• their electrons are free to travel

• the bonds between metal atoms can easily be broken

• of witchcraft

Multiple Choice

The structure of metals includes

• metal atoms sharing electrons

• metal ions bonded to non-metal ions

• cations surrounded by free-floating electrons

• metal atoms giving electrons to other metal atomes

Multiple Choice

Which of the following would be held together by the metallic bond?

• Atoms of iron (Fe)

• Molecules of CH₄

• Atoms of sulfur (S)

• Units of NaCl