In this video, Mr. Krug discusses our modern understanding of the atom, and shows how elements are different from each other. He discusses the information we get from the atomic number and atomic mass of an element. He also shows how we can calculate the number of protons, electrons, and neutrons in an element.
00:00 Introduction
00:26 The Scale and Size of an Atom
03:26 Elements and the Periodic Table
04:34 Atomic Number and Atomic Mass
06:13 Counting Protons, Electrons, & Neutrons
08:21 Conclusion
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