3.2 - Atomic Structure

3.2 - Atomic Structure

Please follow along, taking notes and participating in the interactive questions.

Mission Objectives

• Distinguish among protons, neutrons, and electrons.

• Model the atoms of elements.

Multiple Choice

Three protons have a total charge of _______.

• +3

• 0

• -3

• 2

Multiple Choice

Three neutrons have a total charge of ________.

• +3

• 0

• 2

• -3

Multiple Choice

A nucleus with three protons and three neutrons has a total charge of ________.

• +3

• 0

• -3

• +6

Multiple Choice

How many protons are in a Helium atom? (Hint: same as atomic number!)

• 2

• 8

• 5

• 6

Multiple Choice

How many protons are in an Oxygen atom? (Hint: same as atomic number!)

• 2

• 8

• 5

• 6

Multiple Choice

This is a neutrally-charged lithium ion. It has 3 protons and 3 neutrons. How many electrons does it have?

• 9

• 0

• 6

• 3