What is the proposed process in planetary formation in which heavy metals settle to the core of the planet while lower density materials floated to the surface to form a crust

accretion process in which the dust and gases settles down

Explanation:

Earth's planetary core is made up of heavy elements that are iron (85%) and nickel (5%) while the lighter and weaker elements are found at the top layers. The density of the core is about 5.48 times the density of water. The compassion of the earth's crust, mantle, and core varies and is divided into the outer and inner core. The formation of dynamo effects can be seen to take place in the core of the earth which gives rise to the magnetosphere. Being lighter in nature and composition such as oxygen, silica, and aluminum moves on mental and appear to float on the surface of the earth. While denser elements sink at the bottom.