in how many parts elements can be divided
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into 3 parts
metals
non metals
metalloids
metals
non metals
metalloids
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✒ Classification of Elements
✏ The elements are divided in 3 parts they are :-
- Metals
- Non-metals
- Metalloids
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☞ What are Metals ?
- 78% of known elements are metals.
- They take up the left side of the Periodic Table.
- At room temperature, they are usually solids (except mercury).
- They usually have high boiling and melting points.
- They are shiny having metallic lustre.
☞ What are Non-metals ?
- They occupy the right-hand side of the Periodic Table.
- Most non-metals are brittle and are not malleable or ductile.
- At room temperature, they are usually solids or gases.
- They usually have low boiling and melting points (except carbon and boron).
- They are poor conductors of heat and electricity.
☞ What are Metalloids ?
- Metalloids exhibit some properties of metals as well as of non-metals.
- They may have a metallic or dull appearance.
- They are usually brittle and are fair conductors of electricity.
- They may gain or lose electrons during chemical reactions.
- They form alloys with metals.
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