It depends a bit on what you consider being a "part". The most dense major structural part of the Earth is the solid inner core that has a density of ~13000kg/m³.
Platinum nuggets (a much smaller part of the Earth) have a density of 21450kg/m³
Of course the question becomes philosophical when considering the densities of protons, quarks or other subatomic particles.
Chat with our AI personalities
The core of the Earth has the highest density, with the inner core being more dense than the outer core. The inner core is made mostly of solid iron and nickel, while the outer core is composed of liquid iron and nickel.
The inner core of the Earth has the highest density and temperature. It is composed mainly of solid iron and nickel, with temperatures reaching up to 5,700°C (10,300°F).
The Earth's core has the greatest density. The inner core, composed mainly of solid iron and nickel, is even denser than the outer core, making it the densest part of the Earth.
The core has the highest density among the crust, mantle, and core. This is because the core is composed mainly of iron and nickel, which are heavy elements that increase its overall density compared to the other layers of the Earth.
Mount Everest, located in the Himalayas, is the highest point of land on Earth, with an elevation of 29,032 feet (8,848 meters) above sea level.
The Moon's average density is about 3.34 g/cm3, while the Earth's layers have varying densities with the core being the most dense. Overall, the Earth's average density is higher than that of the Moon.