Show how an atom looks like a solar system

Which element provides strength to the exoskeleton of clams and oysters

Why is it important that fibrin is insoluble in water?

Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.