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Classification of Elements and Periodicity in Properties
what are the major differences between metals and...

Question:
What are the major differences between metals and non-metals?

Answer:

METALS

NON METALS

Metals can lose electrons easily.

Non-metals cannot lose electrons easily

Metals are solids at room ( Exceptions – Hg, Ga ).

temperature Non – metals may be solids, liquids or gases at room temperature

Metals generally form ionic compounds.

Non–metals generally form covalent compounds.

Metals have low ionization enthalpies.

Non–metals have high ionization enthalpies.

Metals are less electronegative. They are rather electropositive elements.

Non–metals are electronegative.

Metals have a high reducing power.

Non–metals have a low reducing power

Metals have luster. They reflect light from polished or freshly cut surface

Non-metals do not have luster.( Exceptions – Diamond and Iodine )

Metals generally have high density

Non-metals generally have low density

They are good conductors of heat and and electricity.

They are usually bad conductors of heat electricity. (exception – carbon in the form of gas carbon and graphite )

Metals are malleable and ductile. They can be beaten into sheets and drawn into wires.

Non-metals are not malleable and ductile They are brittle when solid.They can be crushed into powder

They have a three dimensional crystal structure with metallic bonds

They have different types of structures with covalent and van-der-Walls’ bonds

Metals usually have high tensile Strength

Non- metals usually have low tensile strength

Metals generally have 1 to 3 electrons in outermost shell of their atoms

Non-metals generally have 4 to 8 in their outermost shell of the atom

They generally form basic oxides.

They generally form acidic oxides

They act as reducing agents

They act as oxidizing agents.

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Question:
What are the major differences between metals and non-metals?

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METALS	NON METALS
Metals can lose electrons easily.	Non-metals cannot lose electrons easily
Metals are solids at room ( Exceptions – Hg, Ga ).	temperature Non – metals may be solids, liquids or gases at room temperature
Metals generally form ionic compounds.	Non–metals generally form covalent compounds.
Metals have low ionization enthalpies.	Non–metals have high ionization enthalpies.
Metals are less electronegative. They are rather electropositive elements.	Non–metals are electronegative.
Metals have a high reducing power.	Non–metals have a low reducing power
Metals have luster. They reflect light from polished or freshly cut surface	Non-metals do not have luster.( Exceptions – Diamond and Iodine )
Metals generally have high density	Non-metals generally have low density
They are good conductors of heat and and electricity.	They are usually bad conductors of heat electricity. (exception – carbon in the form of gas carbon and graphite )
Metals are malleable and ductile. They can be beaten into sheets and drawn into wires.	Non-metals are not malleable and ductile They are brittle when solid.They can be crushed into powder
They have a three dimensional crystal structure with metallic bonds	They have different types of structures with covalent and van-der-Walls’ bonds
Metals usually have high tensile Strength	Non- metals usually have low tensile strength
Metals generally have 1 to 3 electrons in outermost shell of their atoms	Non-metals generally have 4 to 8 in their outermost shell of the atom
They generally form basic oxides.	They generally form acidic oxides
They act as reducing agents	They act as oxidizing agents.

Question: What are the major differences between metals and non-metals?

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Question:
What are the major differences between metals and non-metals?