Review Unit 1 and 2

What are the subatomic particles?

• Protons, Electrons, Neutrons

• Molecules, and atoms

• Electrons, Protons, Nucleus

• Nucleus, and Electrons

What is this subatomic particle that has positive charge?

• Electron

• Neutron

• Proton

• Megatron

What is this subatomic particle that has negative charge?

• Electron

• Neutron

• Proton

• Megatron

What is this subatomic particle that has no charge?

• Electron

• Neutron

• Proton

• Megatron

What is the smallest particle of an ELEMENT, and it has also all the properties of it?

• Molecules

• Nucleus

• Subatomic particle

• Atoms

What is the small, DENSE REGION consisting of protons and neutrons at the CENTER of an atom?

• Molecules

• Nucleus

• Subatomic particle

• Atoms

True or False - Protons and Neutrons have about the same mass.

• True - They have about the same mass
• False - They do not have about the same mass

Which two subatomic particles make up the nucleus of an atom?

• Protons and Electrons
• Neutrons and Electrons
• Electrons and Protons
• Protons and Neutrons

Where are the Electrons found in the structure of an atom?

• In the nucleus
• In spaces around the nucleus

How many protons does this atom have?

• 3
• 6
• 4
• 2