Metals - Elements that are good conductors of electric current and heat

🔑The physical properties of metals include luster, malleability, ductility and conductivity

luster - a material that has a high luster is shiny and reflective

malleable - material that can be hammered or rolled into flat sheets or other shapes

ductile- material that can be pulled out or drawn into long wires

Thermal conductivity- the ability of an object to transfer heat

electrical conductivity- ability to carry an electric current

reactivity- the ease and speed at which an element combines or reacts with other substances (chemical property)

corrosion- the deterioration of a metal due to a chemical reaction in the environment

🔑 in the periodic table, metals are classified as alkali metals, alkaline metals,, transition metals, metals in mixed groups, lanthanides, and actinides

alkali metals - the metals in group 1, most reactive

alkaline earth metals - group 2, harder, denser, melt at higher temperatures than the alkali metals

transition metals- groups 3-12, mostly hard and shiny solids, except for mercury, these metals often have high melting points and high density