[ben1793]

Tungsten
Bohr Diagram:
http://www.chemicalelements.com/bohr/b0074.gif
Lattice Structure:
http://cst-www.nrl.navy.mil/lattice/struk.picts/bh.s.png or is it this one http://cst-www.nrl.navy.mil/lattice/struk.picts/a2.s.png

Polyethylene:
Bohr Diagram:
http://www.chelationtherapyonline.com/technical/images/b0030.gif not sure about this one
Lattice Structure: http://www.ndt-ed.org/EducationResources/CommunityCollege/Materials/Graphics/PolyethyleneChain.jpg

Silicon Carbide:
Bohr Diagram:
http://mrsljones.wikispaces.com/file/view/silicon_bohr_model.jpg/290396601/132x131/silicon_bohr_model.jpg this had many different bohr diagrams so I am not sure about this one to, it says silicon, is silicon carbide different?
Lattice Structure:
http://www.iucr.org/__data/assets/image/0018/13239/img43.gif Not to sure about this one either.

That is all I could find, I am not sure if the ones I had found are correct, could you please check them over and help me find the missing images?

Thanks