Electron Configuration

Multiple Choice

Which of the following best describes an electron?

• A positively charged particle found in the nucleus

• A tiny, negatively charged particle that moves around the nucleus

• A neutral particle with no charge

• A particle that does not move

Open Ended

Why is the study of electrons important in understanding the behavior of atoms?

Multiple Choice

What is the maximum number of electrons that the 3rd shell can hold?

• 8

• 18

• 32

• 2

Open Ended

Describe the process by which electrons fill atomic shells and how this relates to their energy levels.

Fill in the Blanks

Atoms cannot have more than

valence electrons.

Multiple Select

Which of the following statements are true about electron shells and their properties?

• Electrons fill shells with increasing energy levels.

• The maximum number of electrons per shell is always 8.

• Valence electrons determine the chemical reactivity of an atom.

• Full shells indicate stability.

Fill in the Blanks

Electrons are

charged particles that move around the nucleus of an atom.

Open Ended

What is one new thing you learned about electrons today?