Atomic Structure

Multiple Choice

Which of the following is NOT true about subatomic particles?

• Protons are positively charged and located in the nucleus.

• Neutrons are neutral and located in the nucleus.

• Electrons are negatively charged and located in electron clouds.

• Protons are negatively charged and located in electron clouds.

Multiple Choice

Which subatomic particle is responsible for the stabilization of the nucleus in an atom?

• Proton

• Neutron

• Electron

• Positron

Multiple Choice

Which of the following statements about atomic mass is correct?

• Atomic mass is the sum of protons and electrons.

• Atomic mass is the sum of protons and neutrons.

• Atomic mass is the sum of neutrons and electrons.

• Atomic mass is the sum of protons, neutrons, and electrons.

Multiple Choice

How many neutrons should iron have?

• 26

• 55.84

• 56-26=30

• 56+26=82

Open Ended

Reflecting on today's lesson about atomic structures, what is one new thing you learned or found interesting?