can somebody tell me four uses of each of the elements?

Question

I couldnt figure out the uses for these elements...
Li, B, Si, C, F, Al, Ca, P

Answer 1

As pure elements or do you mean compounds containing these elements?

Check out the on-line Periodic Tables of the Elements for some uses of these elements. See the sites below:

Answer 2

Try wikipedia. Use the full element name for best results.
Or use Web Elements.