Curated OER
Average Atomic Mass
In this average atomic mass worksheet, high schoolers read about how the protons and neutrons make up the atomic mass of an element. They find the average atomic mass given four problems.
CK-12 Foundation
Ck 12: Chemistry: Atomic Mass Unit
[Free Registration/Login may be required to access all resource tools.] Definition of atomic mass unit is discussed.
CK-12 Foundation
Ck 12: Chemistry: Calculating Atomic Mass
[Free Registration/Login may be required to access all resource tools.] Covers definition of atomic mass and calculations of atomic mass.
CK-12 Foundation
Ck 12: Chemistry Simulation: Average Atomic Mass
[Free Registration/Login Required] Students explore how percent abundances of different isotopes affect the average atomic mass for that given element. Students form connections between the average atomic mass and a person's body mass....
Sophia Learning
Sophia: Molar Mass of an Element: Lesson 1
This lesson will define molar mass and give examples of elements with different molar masses using the periodic table. It is 1 of 2 in the series titled "Molar Mass of an Element."