what are the properties of metals nonmetals .with example
Answers
properties of metals
Good electrical conductors and heat conductors.
Malleable - can be beaten into thin sheets.
Ductile - can be stretched into wire.
Possess metallic luster.
Opaque as thin sheet.
Solid at room temperature (except Hg).
properties of Non-metals
High ionization energies.
High electronegativities.
Poor thermal conductors.
Poor electrical conductors.
Brittle solids—not malleable or ductile.
Little or no metallic luster.
Gain electrons easily.
Dull, not metallic-shiny, although they may be colorful.
Answer:
Properties of Metals
Physical Properties of Metals
Some of the physical properties of metals are listed below.
Shiny (lustrous) in nature
Metal is a good conductor of electricity and heat
Density and melting point is high
Mouldable (Malleable)
Ductile
At room temperature, it is in solid form except for mercury
Opaque
Chemical Properties of Metals
Some of the chemical properties of metals are listed below.
Easily corrodible
Can lose electrons
Form basic oxides
Have low electronegativities
Good reducing agents
Properties of Non-Metals
Physical Properties of Non-metals
Some of the physical properties of non-metals are listed below.
Poor conductors of electricity and heat
Non-Ductile metals
Brittle solids
Maybe solids, liquids or gases at room temperature
These are not sonorous
Transparent
Chemical Properties of Non-metals
Some of the chemical properties of non-metals are listed below.
The number of electrons in the outer shell is generally 4-8
Easily gain or lose valence electrons
Form acidic oxides whenever they come in contact with oxygen
High electronegative elements
Great oxidizing agents
Nonmetals and metals take different forms (allotropes). They have different shapes and properties. Allotropes are elements that exist in two or more than two different physical forms.
Example 1: A non-metal carbon – two allotropes of carbon are diamond and graphite.
Example 2: A metal such as iron – two allotropes of iron are austenite and ferrite