Hank does his best to convince us that chemistry is not torture, but rather an amazing and beautiful science. Chemistry can tell us how three tiny particles – the proton, neutron and electron – come together in billions of combinations to make… everything. In this inaugural episode of Crash Course Chemistry, we start with one of the greatest ideas in chemistry: substances are made from atoms. Specifically, we learn about the properties of the nucleus and why they are important in defining what an atom actually is.

This video is available in Spanish on our Crash Course en Español channel! Watch it here: https://youtu.be/G7wUMpsB5k8

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Contents
Introduction 00:00
Einstein and the atoms 02:05
Composition of atoms 03:18
Atomic number 04:20
Isotopes 08:04
Relative atomic mass 07:26
Mass number 07:44

Watch SciShow episodes on Strong Nuclear Force here:
http://www.youtube.com/watch?vYv3EMq2Dgq8
http://www.youtube.com/watch?vBNDOSMqGLlg

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