Protons, Neutrons, and Electrons - How they differ. Outline

Multiple Choice

Which of the following is NOT a part of an atom?

• Proton

• Neutron

• Electron

• Molecule

Multiple Choice

What is the charge of a neutron?

• +1.602 x 10^-19 C

• 0

• -1.602 x 10^-19 C

• +1

Multiple Choice

Which subatomic particle has a mass that is much less than the other two particles in an atom?

• Proton

• Neutron

• Electron

• Nucleus

Multiple Select

Which of the following statements are true about protons and neutrons?

There may be more than 1 !

• They have about the same mass.

• They have opposite charges.

• They are both found in the nucleus.

• They have the same charge as electrons.

Multiple Choice

Which subatomic particle determines the identity of an element?

• Proton

• Neutron

• Electron

• Quark

Multiple Select

Which of the following statements are true about neutral atoms?

• Number of protons equals number of electrons

• Number of neutrons equals number of electrons

• Overall charge equals zero

• Number of protons equals number of neutrons

Multiple Choice

What is the atomic mass of a carbon atom with 6 protons and 6 neutrons?

• 6

• 12

• 18

• 24

Multiple Choice

How is the average atomic mass of an element calculated?

• By adding the masses of all isotopes

• By dividing the mass of the most abundant isotope by the total number of isotopes

• By taking the weighted average of the masses of all isotopes

• By multiplying the mass of each isotope by its atomic number

Multiple Choice

What happens to an atom when it releases particles of radiation?

Alpha Particles have 2 protons

• It changes into a different element.

• It becomes larger.

• It gains electrons.

• It loses neutrons.

Multiple Choice

During alpha decay, what happens to the atomic number of the decaying atom?

• It increases by two.

• It decreases by two.

• It remains the same.

• It increases by one.

Multiple Choice

What are the three main subatomic particles that make up an atom?

• Proton, Neutron, Electron

• Proton, Neutron, Photon

• Electron, Proton, Positron

• Neutron, Electron, Muon