How do you classify elements as metals or nonmetals?
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Position of Metals on the Periodic Table
Metals appear on the left hand side of the Periodic Table, They have high melting and boiling points and are generally solid at room temperature (mercury is an exception which is a liquid at room temperature. They are good conductors of heat and electricity. They are malleable (can be flattened into thin sheets) and ductile (can be drawn into wires). They have bright luster.
Position of Nonmetals on the Periodic Table
Nonmetals are present on the right hand side of the periodic table. They are usually solids or gases at room temperature with low melting and boiling points (boron and carbon are exceptions). The only liquid non-metal is bromine. Most non-metals are brittle and are neither malleable nor ductile.
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Metals appear on the left hand side of the Periodic Table, They have high melting and boiling points and are generally solid at room temperature (mercury is an exception which is a liquid at room temperature. They are good conductors of heat and electricity. They are malleable (can be flattened into thin sheets) and ductile (can be drawn into wires). They have bright luster.
Position of Nonmetals on the Periodic Table
Nonmetals are present on the right hand side of the periodic table. They are usually solids or gases at room temperature with low melting and boiling points (boron and carbon are exceptions). The only liquid non-metal is bromine. Most non-metals are brittle and are neither malleable nor ductile.
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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).
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).
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