Metals, Alloys, and Reactivity Series Quiz

Which statement correctly describes a metallic bond?

• An array of positive ions in a sea of electrons
• A lattice of neutral atoms
• A network of covalent bonds
• A mixture of metal and non-metal atoms

Why are metals malleable?

• They have strong ionic bonds
• Their layers of ions can slide over each other
• They have weak covalent bonds
• Their electrons are fixed in place

Which property of metals allows them to conduct electricity?

• High density
• Malleability
• Delocalized electrons
• High melting point

What is an alloy?

• A pure metal
• A compound of metals
• A mixture of a metal with other elements
• A non-metallic compound

Why are alloys generally stronger than pure metals?

• They have a higher melting point
• They have a distorted lattice structure
• They are more conductive
• They are more malleable

Which property of aluminum makes it suitable for overhead electrical cables?

• High density
• Malleability
• Conducts electricity
• High melting point

What is the main reason metals like lead are used as counterweights?

• High melting point
• Conducts electricity
• High density
• Malleability

Which of the following metals is the least reactive?

• Potassium
• Calcium
• Copper
• Magnesium

Which of the following is NOT a condition necessary for rusting to occur?

• Presence of oxygen
• Presence of water
• Presence of carbon dioxide

In the reactivity series, which metal is most reactive?

• Copper
• Iron
• Magnesium
• Potassium