Periodic Table of the ElementsWed. Sept. 22 (8A), and Thurs. Sept.

23 (8B)

ALKALI METALS

• Group/family 1 • Very reactive

with water and air

• For example, Lithium

ALKALINE EARTH METALS• Group 2• Poisonous and

extremelyreactive nonmetals

• Combines with oxygen

• Compounds are a major component of the Earth's crust

TRANSITION METALS

• Elements in the 3rd to 12th columns. • Hard, dense

metals • Less reactive than

Group I and 2

• For example, copper (Cu)

RARE EARTH METALS

• For example, dysprosium (Dy)

METALLOIDS

• Elements that have both metallic and non-metallic properties

• For example, boron (B)

HALOGENS

• Group 17• Combines with

metals, usually those in Group 1

• For example, sulfur (S)

NOBLE GASES

• Group 18• Unreactive

• For example, neon (Ne)

H Alkaline Earth Halogens Metals He

Li Be Metalloids B C N O F Ne

Na Mg

Al Si P S Cl Ar

K Ca Fe Co Ni Cu Zn Se Br Kr

Rb Sr Ag

* Au Hg Pb

* *

* Lanthanides

* * Actinides

Alkali Metals

Noble Gases