Finding the Weighted Average Atomic Mass
In this atomic mass activity, students calculate the average atomic mass of the atom using its isotopic data. This activity has 4 problem to solve.
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New Review Chemistry: Average Atomic Mass (AMU, Daltons, etc.)
Scientists created a new measurement, the atomic mass unit, which is defined as carbon 12 = 12amu. So why isn't carbon listed as having exactly 12 amu on the periodic table? An installment from the Socratica chemistry playlist answers...
7 mins 9th - 12th Science CCSS: Adaptable
New Review Average Atomic Mass: Why Are There Decimals on the Periodic Table?
How do you count half of a neutron? Solve the mystery of those awkward atomic masses that contain decimals with a video from JFR Science. The narrator shows viewers how to calculate the average atomic mass using the relative abundances...
5 mins 9th - Higher Ed Science CCSS: Adaptable
Understanding Atomic Number and Atomic Mass
The amount of information you can learn about an element from the periodic table is amazing! Young scientists learn how to interpret the atomic number and atomic mass. Using a carbon atom as an example, the instructor describes the...
2 mins 9th - 12th Science
Isotopes and Atomic Mass
Some isotopes are unstable, or radioactive, meaning they will decay over time and turn into another isotope or stable element. In the interactive simulation, participants manipulate elements to create isotopes and gather information....
6th - Higher Ed Science CCSS: Adaptable
What is a Weighted Average?
Have you ever wondered why the atomic mass listed on the periodic table isn't a whole number? This video explains how weighted averages are calculated and relates the average to the relative atomic mass. Viewers are then given an element...
4 mins 9th - 12th Science CCSS: Adaptable
The Atom, Atomic Number, Mass Number, and Isotopes
Expose your chemistry learners to atomic theory. As they view this PowerPoint, they will learn about subatomic particles, atomic number, and mass number of atoms as well as how isotopes are structured. Throughout this neat and accurate...
9th - 12th Science