Metallic Bond

What is the basis of a metallic bond?

• the attraction of neutral metal atoms.
• the attraction between protons and neutrons.
• the attraction between positive metal ions and interlocking electrons.
• the attraction between positive metal ions and free floating electrons.

At room temperature, most metals are

• liquid
• solid
• gas
• an alloy

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What does malleable mean?

• able to be shaped
• will break easily
• can be used for wire
• is shiny

What is the ability of a substance to be pulled into a wire?

• Malleability

• Ductility

• Conductivity

• Solubility

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

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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

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The melting point of magnesium is higher than that of sodium because

• the relative atomic mass of sodium is less than that of magnesium

• the metallic bonding in magnesium is stronger than that in sodium

• the atoms in magnesium are packed more closely than the atoms in sodium

• the atomic size of magnesium is larger than that of sodium

Why does the melting point of metals increase across period 3, from Sodium (Na) to Aluminium (AI)?

• Size of atoms gets smaller

• Attraction force between nuclei and free electron increases

• Increased space between the valence electrons in the "sea"

• Increased number of valence electrons contributed to the "sea"

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Electrons that are free to move in metals are called _________ electrons

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

• True
• False