Unit Review - The Periodic Table

The elements in this group are very reactive. They are soft, silver, shiny, and have a low density. They are also group 1 elements.

• Alkali

• Alkaline-Earth

• Halogen

• Noble Gas

The elements in this group are harder and less reactive than the alkali metals. They are also in group 2.

• Alkali

• Alkaline-Earth

• Halogen

• Noble Gas

The elements in this group are very reactive. They need only 1 more electron to fill their s & p sublevels. They are found as solids, liquids, and gases in the group.

• Alkali

• Alkaline-Earth

• Halogen

• Noble Gas

The elements in this group have a filled outer s & p sublevels. They fulfill the octet rule and are unreactive with other elements. They are all found as gases.

• Alkali

• Alkaline-Earth

• Halogen

• Noble Gas

The f-block elements from period 7.

• Actinide Series

• Lanthanide Series

• Transition Metals

• Post-transition Metals

The f-block elements from period 6.

• Actinide Series

• Lanthanide Series

• Transition Metals

• Post-transition Metals

Elements in groups 3-12.

• Actinide Series

• Lanthanide Series

• Transition Metals

• Post-transition Metals

Elements in groups 13-16 under the metalloids.

• Actinide Series

• Lanthanide Series

• Transition Metals

• Post-transition Metals

The electrons in the outermost shell (main energy level) of an atom; these are the electrons involved in forming bonds.

• Valence Electrons

• Core electrons

• Octet Rule

• Periodic Law

The electrons inside the outermost electron shell. These electrons are involved in electron shielding.

• Valence Electrons

• Core electrons

• Octet Rule

• Periodic Law