Professor Dave Explains
Nuclide Symbols: Atomic Number, Mass Number, Ions, and Isotopes
How do we represent an atom, with all of its protons, neutrons, and electrons? With nuclide symbols, of course! These show the type of element, as well as the atomic number, mass number, and electrical charge of an atom. That's all you...
FuseSchool
What Are Periods & Groups In The Periodic Table?
What's the difference between periods and groups in the Periodic Table and why are the elements structured this way. Find out in this video from the Properties of Matter chapter of the Virtual School GCSE / K12 Chemistry.
FuseSchool
PHYSICS - Matter - Atom Structure
I this video you will see how we can use the periodic table to tell us more about the differences between elements, including the different numbers of protons, neutrons and electrons they possess.
Visual Learning Systems
Understanding Mass Number and Atomic Mass
In this video, the concept of mass number is explained, using the example of sulfur. The video also introduces the idea of isotopes, using carbon as an example, and explains how the atomic mass is calculated as a weighted average of the...
Tyler DeWitt, PhD
Science With Tyler De Witt: What Is a Weighted Average?
Watch this tutorial to answer the following questions: What is a weighted average? How do you calculate a weighed average? Weighted averages are used for atomic mass and atomic weight, based on the mass numbers of various isotopes.
Other
E Learnin: Science: Atomic Number and Mass Number of an Atom
Recognize the atomic number and mass number of an atom and how they are linked to the electrons, protons and neutrons of an atom. [2:05]
Tyler DeWitt, PhD
Science With Tyler De Witt: How to Calculate Atomic Mass Practice Problems
In this tutorial, find out how to calculate atomic mass, by multiplying the atomic weight of an atom by the percent abundance expressed as a decimal.
Khan Academy
Khan Academy: Atomic Number, Mass Number, and Isotopes
How to use the atomic number and the mass number to represent different isotopes. [9:44]