Atom Unit TEST Review

Which subatomic particle has a positive (+) charge?

• Neutron

• Proton

• Electron

Which subatomic particle has a negative (-) charge?

• Proton

• Electron

• Neutron

Which subatomic particle has a neutral or no charge?

• Proton

• Electron

• Neutron

Where is the nucleus located in an atom?

• Near the electron shells/levels

• Near the center of an atom

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

• In the nucleus

• In spaces around the nucleus

The subatomic particles in green are...

• Protons

• Neutrons

• Electrons

The Atomic number is known as the _______

• Number of electrons in an atom

• Number of Protons in an atom

• Number of neutrons in an atom

• Number of Protons and electrons in an atom

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

• Protons and Electrons

• Neutrons and Electrons

• Electrons and Protons

• Protons and Neutrons

How many electron shells/levels does this atom have?

• 1

• 2

• 3

• 4

How many protons does this atom have?

• 3

• 6

• 4

• 2