Question

What is a metal ?and what are the properties of metal ?

Answer 1

A metal can refer to an element, compound, or alloy that is a good conductor of both electricity and heat. Example metals include gold, sodium, copper, iron, and many other elements. Metals are usually malleable, ductile, and shiny.

Answer 2

$\bold{\huge{\underline{Metals-}}}$

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, ie metals are electromagnetic. The metals are maluable and ductilo. Generally they are solid at room temperature but Mercury (Hg) is in the liquid state at room temperature.

Examples - Aluminum (Al), Copper (Cu), Excellent Metals (Ag, Au, Pt), Alkaline Metals (Li, Na, K), Alkaline Soil Metals (Bo, Mg,ca)


$\underline {\large \bf \: Physical \: Properties \: of \: Metals}$


$\bf{Metallic \:Luster}$ 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.

Examples - Cu, Gold (Au), Silver (Ag), etc. Due to metallic glow, they are used in making jewelery and decoration items. Exception - iodine and graphite are also shiny but these are non-metals.


$\bf{Hardness-}$
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.


$\bf{Brittleness-}$

Metals are rigid; brittle can not be found in these

Exceptions - Zn



$\underline {\large \bf \: Chemical \: Properties \: of \: Metals}$


$\bf \: Reaction \: Of \: Metals \: with \: Oxygen$

When combustion of metals in air, it is converted into oxides by reacting with oxygen present in the air



$\bf \: Reaction \: Of \: Metals \: with \: water$


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.