METALS, NONMETALS, & METALLOIDS

PERIODIC TABLE

METALS• Good conductors of heat and electricity

• All, but Mercury (Hg), are solid at room temperature

• Metals are located to the left of the staircase

• Group 2 metals

• Shiny

• Ductile

• Malleable

• Combine readily with other elements

• Group 1 metals

• Most reactive of all metals

• Don’t occur in nature in their element form

METALS

Alkali Metals Alkaline Earth Metals

• Lanthanide Series – Elements 57-71

• Actinide Series – Elements 89-103

• Groups 3-12

• Most familiar metals because they often occur in nature uncombined with other substances

Transition Metals Rare Earth Metals

NONMETALS

• Elements that are usually gases or brittle solids at

room temperature

• Most can form ionic & covalent compounds

• Located to the right of the staircase

NOBLE GASES• Group 18 elements

• Exist as isolated atoms

• They are all stable because their outer energy levels (shells) are full

METALLOIDS• Elements that make up the stair steps

• These elements have both metallic & non-metallic properties

• Used in technology (cell phones, computers, microchips, etc.)

• Metalloids are part of the mixed groups which contain metals, non-metals, and metalloids

• Mixed groups are Groups 13, 14, 15, 16, & 17