Unit 3 Final Review

The horizontal row on the periodic table is called a

• group
• family
• period
• atomic number

A vertical column is called...

• group
• tower
• period
• crew

The number at the bottom of each square on the periodic table is the ...

• atomic number
• atomic mass
• chemical symbol
• element name

The number at the top of each square on the periodic table is the ...

• atomic number
• atomic mass
• Chemical Symbol
• Element Name

What is the chemical symbol for Lithium?

• H
• He
• Li
• N

The atomic number tells you what?

• number of electrons

• number of protons

• number of neutrons

• electrons plus protons

Which group of the periodic table is composed of inert (not reactive)  gases?

• alkali metals
• alkaline earth metals
• halogens
• noble gases

The atoms along the staircase are called 

• metals
• nonmetals
• metalloids
• noble gases

Which is a halogen?

• Helium
• Chlorine
• Oxygen
• Neptune

Which is an alkali metal?

• Magnesium
• Iron
• Sodium
• Europium