CHEMISTRY: How’re you doing? Confused yet? Don’t worry – today you learned all the background information about quantum numbers, tomorrow we’ll put it all together and it will begin to make sense. If you didn’t hear the lecture today, this is for sure one that you want to watch!
HON CHEMISTRY: Here are the notes on the elements of the s-block – everything from bananas, to bones, signal flares to street lights. Don’t forget to pay close attention to properties (physical & chemical), occurence, and uses. If you want to see some really interesting videos on some of the more “explosive” elements, check out this link – http://periodicvideos.com/
And guess what I found out today – chalk isn’t really chalk! I mean, just like pencil lead isn’t really lead, blackboard chalk isn’t made of calcium carbonate anymore, it’s made of calcium sulfate (commonly called gypsum) instead. Who knew!