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Classification of the elements (Metals (Physical properties: Malleable,…
Classification of the elements
Metals
Physical properties: Malleable, ductile and tough, heat and electricity conductors, most of them solids
Chemical properties: lose electrons during oxidation and chemical changes, they react with nitic acid forming the corresponding oxsial
Metalliods
Physical properties: State of Matter: Solid
Luster: Metallic lustre
Elasticity: Brittle
Conductivity: Semi-conductive. Average transmission of heat.
Chemical properties: Oxidation: Readily form glasses
Alloys: Form alloys with metals
Melting: Some metalloids contract on melting
Compounds: Reacts with the halogens to form compounds
Non- metals
Phisycal properties: Opaque or translight solids, breakable solids, liquids and gases, bad conductors
Chemical properties: Gain electrons during chemical changes, do not react with mineral acids
Mendeleev
organizes de elements in 7 periods by atomic mass living holes for unknown elements.
Moseley
organizes the elements by atomic number ants its the order that its followed today.
Daniela González Valdez A01731373
Jonathan Marín Cante A1730487
María Elisa Vidaurri Salvatori
Joanna Garibay A01731388
Carolina Garza A01730489
Apa references: Elementalmatter.info. (2017). Properties of Metalloids. [online] Available at:
http://www.elementalmatter.info/properties-of-metalloids.htm
[Accessed 29 Aug. 2017].