Dear Yash

Fig:  Earth structure according to (a) Goldschmidt (b) Kuhn and Rittman



Layer
Elements present


Metallic core (Siderophil)
Mn, Fe, Co, Ni, Cu, Ru, Rh, Pd, Ag, Re, Os, Ir, Pt, Au


Sulphide layer (Chalcophil)
P, S, Zn, Ga, Ge, As, Se, Cd, In, Sn, Sb, Te, Hg, Tl, Pb, Bi


Silicate layer (Lithophil)
Chlorides, sulphate and carbonates of Li, Na, K, Rb,  Cs, Mg, Ca, Sr, Ba. Silicates and oxides of Be, Al, Si, Y, La, Ac, Ti,  Zr, Hf, Th, V, Cr, Mo, W, U


Atmosphere (Atmophil)
F, Cl, Br, I, B, C, Si, N, O and rare gases



 hence the answer is 4 siderophil
All the best.
AKASH GOYAL
AskiitiansExpert-IITD
 
Please feel free to post as many doubts on our discussion forum as you can. We are all IITians and here to help you in your IIT JEE preparation.
Win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian. 
Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar  respectively : Click here to download the toolbar..