Hank does his best to convince us that chemistry is not torture, but is instead the amazing and beautiful science of stuff.
Chemistry can tell us how three tiny particles - the proton, neutron and electron - come together in trillions of combinations to form... everything.
We start out with one of the biggest ideas in chemistry ever - stuff is made from atoms. More specifically, we learn about the properties of the nucleus and why they are important to defining what an atom actually is.
A unit is the frequently arbitrary designation we have given to something to convey a definite magnitude of a physical quantity and every quantity can be expressed in terms of the seven base units that are contained in the international system of units.
Hank thinks this is a thrilling subject, and while you may not agree, it is a subject that is very important if you want to be a scientist and communicate with accuracy and precision with other scientists.