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Answer:
Matter is anything that occupies space and has mass. The three states of matter are solid, liquid, and gas. A physical change involves the conversion of a substance from one state of matter to another, without changing its chemical composition.
Physical Properties of Metals
Metals are lustrous, malleable, ductile, good conductors of heat and electricity. Other properties include: State: Metals are solids at room temperature with the exception of mercury, which is liquid at room temperature (Gallium is liquid on hot days).
1) Anything that occupies space and has mass is called as Matter.
2) Types of matter are :
⚫Solid
⚫Liquid
⚫Gases
3)⚫ Metals are shiny when polished Or Scratched.
⚫Metals are good conductors of heat and electricity.
Examples :- Iron, copper, aluminium,etc.
4)Gold ,silver and Platinum are the metals which show ductility and malleablility.
5)⚫Non-metals are brittle.
⚫Non-metals are poor conductor of electricity.
Examples:- Carbon,oxygen,sulphur,etc.
6)⚫Non - metals like nitrogen is used in fertilizers.
⚫Graphite is used as a good conductor of electricity.
⚫Pottassium is used in fertilizers.
⚫Nitrogen is used by plants.