The Periodic Table

An element is

• made of only a single atom

• made of only one type of atom

• made of lots of similar atoms

• not on the periodic table

Each element on the periodic table is represented by a ...

The first letter of the symbol is always a

Chemical properties are...

• houses made of chemicals

• observations that can be seen or measured without changing the substance

• changes that occur to a substance that can't be reversed, i.e., rusting

• The ability of a substance to react and form a new substance, i.e., flammability and toxicity.

Physical properties can be

• Changed by chemical reactions
• Measured without changing the substance
• Created by mixing two substances
• Altered by changing the temperature

Elements in the periodic table were grouped according their

A row in the periodic table is called a

The atomic number _________ as you go from left to right across the periodic table

The atomic number is the ________ number of the 2 numbers surrounding the element.

A column in the periodic table is called a...

• column

• group

• period

• row