CHEMISTRY: Happy Leap Day! Here’s the lecture on the first periodic trends – atomic radii and ionization energy. You made some great connections today! Let’s finish second ionization energy tomorrow. 🙂
Hey, as you are studying for the test (and you are studying, aren’t you?!?), don’t forget the element videos in Vodpod collection below. To review the properties and uses of the elements for the test, it would be a really great idea for you go back and view hydrogen, potassium, mercury, copper, arsenic, phosphorus, and chlorine. And you might just learn something along the way! You can view the videos on these and all of the elements on this cool website, periodicvideos.com. Just click on the elements, it’d be a great review as you start to prepare for the test. Wait – did I say test?!?