Is this right for the most part?
I have to draw something like this and label for my exam.

You'd have much better luck with google i think, or mabey the HW forum. There's not a lot of posting here and even less scientific knowledge.

I tried, but couldn't find a simple, basic diagram

all i could google for a diagram was basic crap without atmosphere and basic labels lol.

if its for an exam shouldn't your text book have the required info? or was this like a lecture/video type thing?

You could try googling the individual parts of the diagram and finding the info you need. I would assume you have a text book for this class though, the info you need is bound to be in there if you look for it.

wut bout trophosphere and shit

Well, the cryosphere ist missing.
I'd divide the mantle to lower and upper mantle.

In and below the crust u name element, in the other spheres the molecules... decide.

If ure interested, look at Grotzingers "Understanding Earth", well written book.

nope it should be like this!

this!