PERIODIC TABLE

These are found on the Periodic Table.

• Compounds
• Elements
• Mixtures

the basic structural unit of matter

• atom

• matter

• element

• nucleus

a collection of atoms of one type that cannot be broken down into simpler substances by ordinary chemical or physical means

• element

• subatomic particle

• electron

• matter

the positively charged subatomic particle contained in the nucleus of an atom

• proton

• neutron

• electron

• matter

a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge

• proton

• neutron

• electron

• matter

a negatively charged subatomic particle that orbits the nucleus of an atom

• proton

• neutron

• electron

• matter

Which is an electron?

• A
• B
• C

What are subatomic particles? 

• the nucleus 
• electron cloud
• positive charge
• electrons, protons, and neutrons

How many different atoms are there in a compound?

• 0

• 1

• 2 or more

• -1

Which of the following does NOT describe elements?

• All particles are alike

• Can be broken down into simpler substances

• Have unique sets of properties

• Join together to form compounds