write the properties of metals and nonmetals
Answers
Answer:
Metals and non-metals have different properties and different reactions. These differences in reactivity depend on where an element is placed in the periodic table
Some elements have properties that are not typical. For example:
mercury (a metal) has a low melting point and exists as a liquid at room temperature
graphite, a form of carbon (a non-metal), has a high boiling point and is also a good conductor of electricity
A substance with a high density means it has a high mass for its size.
Malleable substances can be bent or hammered into shape without shattering, while brittle substances shatter when bent or hit.
Ductile means that a substance can be drawn out into a long wire without snapping or breaking.
Chemical properties
Metals and non-metals can also be distinguished by some chemical properties.
The most common chemical property is the type of oxide that the element forms. Metals form oxides that are basic, but non-metals form oxides that are acidic. For example, sulfur and carbon are both non-metals. They react with oxygen to form sulfur dioxide and carbon dioxide. These compounds are both gases present in the air and which dissolve in rain water, making it acidic.
Some oxides do not dissolve in water, so would not affect the colour of an indicator added to the water.
Explanation:
METALS
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.
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.