136,834 views
Capsule on atoms, ions and molecules (but especially ions): difference between an atom and an ion; composition of an atom; composition of an ion; symbolic notation of an ion; conductivity of solutions; ion migration experiment. Feel free to subscribe, give it a thumbs up (if you enjoyed the video) and leave comments (questions about what you didn't understand, remarks about the video, suggestions for improvements, etc.). PS: in the video, there is an error (nobody is perfect), there are 6 hydrogen atoms in the ethanol molecule and not 5 as I inadvertently said.