Unit 2- Atomic Structure

Which of the following is NOT a subatomic particle?

• Proton
• Neutron
• Photon
• Electron

Which subatomic particle has a positive charge?

• Proton
• Neutron
• Electron

Which subatomic particle has a negative charge?

• Proton
• Neutron
• Electron

Which subatomic particle is neutral?

• Proton
• Neutron
• Electron

Which subatomic particles are NOT located in the nucleus?

• Protons
• Neutrons
• Electrons

The atomic number of an element is the same as the number of ________ in the nucleus.

• Protons
• Neutrons
• Protons + Neutrons
• Electrons

Atoms of the same element with different numbers of neutrons are called

• Ions
• Isotopes
• Iotas
• Introns

The mass of a proton is the same as the mass of a 

• neutron
• electron

The mass number of an isotope is equal to the number of ______ in an atom.

• Protons
• Neutrons
• Protons + Neutrons
•  Electrons

The mass listed on the periodic table for each element is known as the 

• average atomic mass
• atomic mass
• atomic weight
• weighted mass