What do you remember about Chemistry?

The Periodic Table shows

• the different types of atoms

• every substance known

Elements are substances..

• made of one type of atom

• made of more than one type of atom

• not made of atoms

Compounds are substances..

• made of one type of atom

• made of more than one type of atom

• not made of atoms

On the Periodic Table, metal atoms are found..

• on the LEFT side

• on the RIGHT side

On the Periodic Table, non-metal atoms are found..

• on the LEFT side

• on the RIGHT side

Hydrogen is a non-metal atom but is found

• on the RIGHT side of the Periodic Table

• on the "staircase" of the Periodic Table

• on the LEFT side of the Periodic Table

The definition of ATOMIC NUMBER is

• the number of electrons in an atom

• the number of protons in an atom

• the number of neutrons in an atom

• the number of electron shells in an atom

What is the charge on an electron?

• 0

• +1

• -1

Which sub-atomic particles move around the outside of an atom, in layers?

• protons

• neutrons

• electrons

• nucleii

When is an atom stable?

• when it has no electrons

• when it has a partially full valence shell

• when it has a full valence shell

• when it has the same number of protons and neutrons