The Earth's core is thought to be predominantly iron (85 %) with some (4-5%) nickel and the remainder oxygen, silicon, hydrogen and carbon and a number of siderophile (iron liking) elements that descended to the core with iron during planetary differentiation.
The element that makes up most of the earths CORE is iron.
iron
scientists think that the earths core is made up of mostly iron, and contains smaller amounts of copper nickel.
The principle element found at the Earth's core is iron.
It makes up the majority of the molten core of the earth.
Iron is the primary element that makes up most of the Earth's core. It accounts for about 85% of the core's composition, with the rest likely being nickel in combination with some lighter elements.
the crust and the core
lower core, upper core, mantle, and crust
The three parts that make up the Earths mantle are the crust, core, and mantle.
The three parts that make up the Earths mantle are the crust, core, and mantle.
The core is 33% of the Earths mass
Iron is the primary element that makes up most of Earth's core, both the inner and outer cores. This iron is primarily in a liquid state in the outer core and a solid state in the inner core due to high pressures and temperatures.