The Modern Periodic Table

The horizontal rows of the periodic table are called PERIODS.

The vertical columns of the periodic table are called GROUPS, or FAMILIES.

The elements in any group of the periodic table have similar physical and chemical properties!

Alkali Metals

ALKALI METALS

●Li, Na, K, Rb, Cs●High chemical reactivity●Reacts vigorously with water● * Reactivity of Metal Increases as you

go down the periodic table● * Hardness of Metal Decreases as you

go down the periodic table● * Melting Point of Metal Decreases as

you go down the periodic table

Alkaline Earth Metals

ALKALINE EARTH METALS

● Be, Mg, Ca, Sr, Ba, Ra● show similar trends as Alkali

Metals

Transition Metals

InnerTransition Metals

These elements are also called the rare-earth

elements.

Halogens

Halogens

● F, Cl, Br, I

●* Reactivity of Non-metallic elements Decreases as you go down the periodic table.

●* Boiling Point and Melting Point Increase as you go down the periodic table.

Noble Gases

NOBLE GAS FAMILY

● He, Ne, Ar, Kr, Xe, Rn○ inert, low reactivity○ do not form stable

compounds with other elements

○ electron arrangement is stable

Properties of Metals

•Shiny, lustre•Hard•Good conductors of heat/electricity•metals are malleable, ductile,

Zinc

Properties of Non-Metals

• Non-metals are poor conductors of heat and electricity.

• Non-metals are not ductile or malleable.

• Solid non-metals are brittle and break easily.

• They are dull.• Many non-metals are

gases.

Sulfur

Properties of Metalloids

• Metalloids (metal-like) have properties of both metals and non-metals.

• They are solids that can be shiny or dull.

• They conduct heat and electricity better than non-metals but not as well as metals.

• They are ductile and malleable.

Silicon