Monday Review 8th Grade

What element is this?

• Helium
• Hydrogen
• Argon
• Silver

What element is this model showing?

• Lithium
• Boron
• Carbon
• Neon

What element is this?  What is the mass number of this atom?

• sodium, 23
• magnesium, 23
• magnesium, 12
• sodium, 11

Match the subatomic particle with its charge

• Neutral

• Proton

• Positive

• Neutron

• Negative

• Electron

What are the parts of an atom?

a

b

c

Electron

Proton

Neutron

Which of the following is the best definition for matter?

• anything that has mass and volume

• the amount of space a substance occupies

• how much something weighs on earth

True or False:

Atoms are the basic building blocks of most of the matter around you.

• true

• false

A particle smaller than an atom

• Subatomic Particle

• Atom

• Electrons

• Elements

A subatomic particle that has neutral (neither positive nor negative) charge and is located in the nucleus

• Electron

• Neutron

• Protron

• Atom

A subatomic particle that has negative charge and is located outside of the nucleus

• Protrons

• Electrons

• Neutrons

• Subatomic Particle