periodic table organization

Organizer of P. Table

Mendeleev

Alkali Metals

Group 1 Soft, Shiny, Good conductors, low melting points, react violently with water

Alkali Earth metals

Group 2: Similar to Alkali Metals but much less reactive

Halogens

Group 17: Very reactive, form compounds with most elements

Noble gases

Group 18: Very un reactive, rarely form compounds

Metals

Elements left of staircase: shiny, usually solid at room temperature (except hg; liquid), Ductile (formed into wires), Maleable (Flattened), Good conductors, high melting points

Non metals

Elmer’s to the right of the staircase: Dull, not ductile or maleable. Poor conductors, low melting points

Metalloids/semi metals

Elements along the staircase (Except Al)

Have properties of both nonmetals and metals