Exploring Metals and Non-Metals

What is a common property of metals?

• Brittle and easily breakable

• Poor conductors of heat and electricity

• Low melting and boiling points

• Good conductors of heat and electricity

How do metals generally conduct heat?

• Metals do not conduct heat effectively and rely on insulation.

• Metals conduct heat through the movement of free electrons that transfer energy.

• Metals conduct heat through the vibration of their atomic structure.

• Metals conduct heat by absorbing light energy.

Which metal is known for its malleability?

• Iron

• Lead

• Gold

• Copper

What property makes metals good conductors of electricity?

• High density of atoms.

• Presence of non-metallic elements.

• The presence of free electrons.

• Low melting point.

How do metals react with acids?

• Metals react with acids to produce oxygen gas and a base.

• Metals react with acids to produce a salt and hydrogen gas.

• Metals do not react with acids under any circumstances.

• Metals dissolve in acids to form a liquid solution only.

What is the appearance of most metals in their pure form?

• Dull and rough

• Transparent and colorless

• Brittle and fragile

• Shiny and lustrous

Which metal is liquid at room temperature?

• Mercury

• Aluminum

• Gold

• Iron

What is the typical density of metals compared to non-metals?

• Metals have a lower density compared to non-metals.

• Metals and non-metals have the same density.

• Non-metals are denser than metals.

• Metals have a higher density compared to non-metals.

How do metals typically react with oxygen?

• Metals do not react with oxygen at all.

• Metals react with oxygen to form metal oxides.

• Metals dissolve in oxygen to form gases.

• Metals react with oxygen to form acids.

What is the significance of alloys in relation to metals?

• Alloys improve the properties of metals for various applications.

• Alloys weaken the strength of metals.

• Alloys are purely decorative and have no functional use.

• Alloys are only used in jewelry making.