Metals Properties and compounds

Metals (from Latin metallum - mine, mine) are a group of elements in the form of simple substances with characteristic metallic properties, such as high thermal and electrical conductivity, positive temperature coefficient of resistance, high plasticity and metallic luster.

Metals
Non-metals
Heavy (for example: Lead, Copper, Mercury, Cadmium, Cobalt)
Refractory (for example: Molybdenum, Tungsten)
Non-Ferrous (for example: Lead, Copper, Tin, Zinc, Nickel)
Noble: Gold, Silver and platinum group metals
Examples of metals:

Physical properties of metals
Electrical conductivity
Metallic luster
Metallic ringing
Boiling
Point Hardness
Density
Melting
point Thermal conductivity

chemical bond between atoms and ions in a metal crystal arising from the socialization of their valence electrons
Ion
electron
atom

methods of obtaining metals
Recovery by coal or carbon monoxide (carbothermy)

recovery by active metals (metallothermy)

electric shock recovery (electrolysis)

methods of protecting metals from corrosion
protection with more active metal
separation of metal from aggressive environment
use of corrosion retardants
electrical
protection passivation of metals
production of metals resistant to corrosion