Metals and Non-Metals

What are the physical properties of metals?

• Luster, malleability, ductility, and conductivity of heat and electricity

• Opacity, hardness, and inability to conduct electricity

• Transparency, brittleness, and insulating properties

• Rough texture, flexibility, and low melting point

Explain the chemical properties of metals.

• Metals have certain chemical properties such as reactivity, ability to form positive ions, and metallic bonding.

• Metals do not exhibit metallic bonding

• Metals have no reactivity with other elements

• Metals have the ability to form negative ions

List some physical properties of non-metals.

• Rough appearance, low melting and boiling points, excellent conductors of heat and electricity, and ductile in solid state

• Transparent appearance, high melting and boiling points, excellent conductors of heat and electricity, and malleable in solid state

• Dull appearance, low melting and boiling points, poor conductors of heat and electricity, and brittle in solid state

• Shiny appearance, high melting and boiling points, good conductors of heat and electricity, and flexible in solid state

Discuss the chemical properties of non-metals.

• Non-metals have high electronegativity, tend to gain electrons to form negative ions, and are poor conductors of heat and electricity.

• Non-metals have metallic luster and are malleable and ductile.

• Non-metals have low electronegativity and tend to lose electrons to form positive ions.

• Non-metals are excellent conductors of heat and electricity.

What is the reactivity series of metals and how is it determined?

• The reactivity series of metals is determined by their color

• The reactivity series of metals is determined by their atomic number

• The reactivity series of metals is determined by observing the reaction of metals with water, acids, and oxygen.

• The reactivity series of metals is determined by their melting point

Which is a metal among the following?

• Na

• P

• Oxygen

• Hydrogen