what is metal ???????
Answers
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Those elements that conduct heat and Electricity are called Metals.
Or,
Metals are those Elements, which tend to create an electron by making an electron, i.e., Metals are Electromagnetic.
Eg :- Copper(Cu), Aluminium(Al), Excellent Metals(Ag, Au, Pt), Alkaline Metals (Li, Na, K)
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Metallic Luster :-
The surface of pure metals is bright due to the presence of free electrons and their surface can also be shiny by coating or polishing on the metals.
Hardness :-
Most metals are hard on ordinary heating.
Examples - Aluminum (Al), Cu, iron, Fe, etc.
Exception - Sodium (Na) and Potassium (K) are soft metals, they can be cut with knives.
Brittleness :-
Metals are rigid; brittle can not be found in these
Exceptions - Zn
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REACTION OF METALS WITH OXYGEN
When combustion of metals in air, it is converted into oxides by reacting with oxygen present in the air.
REACTION OF METALS WITH WATER
According to the functioning of metals, metals act differently than water. Metals react with water and produce hydrogen gas and metal oxide or metal hydroxide.
Answer:
a solid material which is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity (e.g. iron, gold, silver, and aluminium, and alloys such as steel).