Blocks and Groups on The Periodic Table

What is located on the horizontal rows on the Periodic Table?

• families

• groups

• periods

A __________ goes up and down on the periodic table.

• Group

• Period

The _______ tells us how many energy shells an element has.

• group

• period

• atomic number

• element symbol

The _________ tells us how many valence electrons an element has.

• Group

• Period

• Atomic Number

• Element

The elements in the middle of the table are called the _____________ metals because their properties change from metallic to nonmetallic.

• positive

• negative

• magnetic

• transition

The _________________ are a small group of elements that have both metallic and nonmetallic properties.

• Oxygen Group

• Nitrogen Group

• Metalloids

• Halogens

Group 1: These metals are extremely reactive. They all have one valence electron. They are shiny and silver in color. They are soft and can be cut with a knife.

• Transition Metals

• Alkali Metals

• Alkaline Metals

• Lanthanides

Group 2: Slightly less reactive because they have 2 valence electrons. They are silver colored and more dense that Group 1 metals.

• Transition Metals

• Alkali Metals

• Alkaline-earth Metals

• Actinides

Group 7: All nonmetals. Very reactive. Poor conductors of heat and electricity. Tend to form salts with metals. Example Cl- Chlorine is an example.

These elements have 7 valence electrons

• Boron Group

• Oxygen Group

• Nitrogen Group

• Halogens

Group 8: Unreactive nonmetals. All are colorless, odorless gases at room temperature. These elements have a full outer energy level, usually 8 valence electrons, except for Helium which only has 2 valence electrons.

• Nitrogen Group

• Oxygen Group

• Noble Gases

• Halogens