Name two thickset metals that sink as the planet cooled to form the core:?
Heavy metals (Fe/Ni), thats Iron and Nickel melt and sink to the core.
Light elements (Ca/Na/K), thats Calcium, Sodium and Phosphorus and silicates float to form mantle and crust.
Good luck! Hope this helps! Source(s): http://www.ux1.eiu.edu/~cfjps/1400/solar…
Iron and nickel