Final answer:
The core of the Earth is denser than the mantle due to the presence of heavier elements and high pressure at the core.
Step-by-step explanation:
The core of the Earth is denser than the mantle due to the presence of heavier elements and high pressure at the core.
The core is primarily made up of iron and nickel, which have higher atomic weights compared to the lighter elements that make up the mantle.
Additionally, the intense pressure at the core compresses the materials, making them denser.
Learn more about Earth's core density