The Earth's inner core is primarily made of iron and nickel.
Composition of the Inner Core
The inner core, a solid sphere located at the Earth's center, is composed predominantly of:
- Iron (Fe): This is the most abundant element in the inner core.
- Nickel (Ni): Nickel is the second most prevalent element.
- Other trace elements: Smaller amounts of other elements may also be present.
Characteristics of the Inner Core
- Solid State: Despite the incredibly high temperatures (ranging from 7200–9000℉ or 4000–5000℃), the extreme pressure keeps the iron and nickel in a solid state.
- Size: It's approximately 1500 miles (2414 km) thick.
- Temperature: As mentioned above, it is extremely hot.
