The Atom
The Periodic Table
100

What is an atom?

The smallest unit of everything around us. 

100
This table organizes all the elements. 

Periodic Table

200

This part of the atom is in the center. 

The nucleus

200

This is made up of many atoms that are the same. 

An element

300

This particle has a positive charge. 

Proton

300

This is a horizontal row on the periodic table. 

Period

400

This particle has a negative charge. 

Electron. 

400

This is a vertical column on the periodic table. 

Group

500

This particle is in the nucleus and has no charge. 

Neutron

500
Each group on the periodic table has a different _______. 

Color

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