An element may be defined as a substance that cannot be decomposed into simpler substances by ordinary chemical processes.
These elements are further of two types:
These are shiny elements that form positive ions ( cations ) and are good conductors of heat and electricity .
Metals are also malleable and ductile.
- Malleability is a property of metals that allows it to be beaten into thin sheets without breaking.
- Ductility is a property of metals that allows them to be stretched into thin wires without breaking.
Eg : Gold, Silver, Aluminium etc.
Elements that form negative ions ( anions ) and are bad conductors of heat and electricity .
These show properties opposite to those of metals.
- Non-metals are neither malleable nor ductile .
- They are brittle and they break when put under stress.
Eg : Chlorine, Oxygen, Sulphur etc.