Hunting the Elements

THINK PAST) Before I watched the "Hunting the Elements" video, I didn't know much about the periodic table. All I knew was that it was created by Dmitri Mendeleev and that it was an arrangement of a bunch of things such as hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, flouride, neon, sodium, etc...........

THINK PRESENT) One of the things I learned was that 90 of the elements occur in nature. The other ones are man made. I also learned was that an element's number is the highest unexcited energy level for an electron of that element.




THINK FUTURE) I want to know what most of, or the majority of the elements on the periodic table are made out of.