chapter 3 chemistry periodic table

created the first periodic table

• Dmitri Mendellev

• Dmitri Pavlov

• Sir Henry Davey

What are groups/families?

• rows across periodic table

• columns in periodic table

• below the periodic table

what are periods in periodic table?

• below the periodic table

• vertical columns in the periodic table

• rows across the periodic table

what is malleable?

• able to be drawn into wire

• able to conduct electricity

• able to be pounded into shapes

what is ductile

• able to be drawn into wire

• able to be pounded into shapes

• able to conduct electricity

location of metals on periodic table

• on the stairstep

• to the left of the stairstep

• to the right of the stairstep

location of nonmetals on the periodic table

• on the stairstep

• to the left of the stairstep

• to the right of the stairstep

metalloids

• always gasses

• have properties of metals and nonmetals

• always conduct electricity

metal properties

• malleable, ductile, conducts electricity

• gasses at room temperature and do not conduct electricity

• semicondcutors

properties of nonmetals

• conduct electricity, malleable, ductile

• poor conductors of electricity and gasses at room temperature

• semiconductors