Seismic data was used to estimate the radius of the Earths core. Inner = 1,221 km Outer = 2,259km Total = 3,480km Therefore an approximate diameter to the Earth core is 6,690 km or 4,325 miles. See related link for more information.
Earth's core
The Earth's core is about 1200km thick. it is mostly iron, and is solid due to extreme pressure. The temperature can be up to 7000 degrees.
The molten iron and medals inside the earths core are the reasons for the earths magnetic core.
Mercury's diameter (at the equator) = 4880km or 0.3825 x Earths diameter Venus' diameter = 12,104km or 0.9488 x Earths Earth's diameter = 12,756km Mars' diameter = 6794km or 0.5323 x Earths Jupiter's diameter = 142,984km or 11.21 x Earths Saturn's diameter = 120,534km or 9.45 x Earths Uranus' diameter = 51,114km or 4.01 x Earths Neptune's diameter = 49,532km or 3.88 x Earths (Pluto's diameter = 2306km or 0.18 x Earths) I included Pluto on the end there, its not classed as a planet any more though, but a dwarf planet.
Define Core Diameter Mismatch
no it is not true. there is solid iron and nickel in the Earths core
Earths core
No the earths core is not a cause of globel worming
The core is 33% of the Earths mass
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From smallest (1) to largest (8) 1 Mercury. Diameter (at the equator) = 4880km or 0.3825 x Earths diameter 2 Mars. Diameter = 6794km or 0.5323 x Earths 3 Venus. Diameter = 12104km or 0.9488 x Earths 4 Earth. Diameter = 12756km 5 Neptune. Diameter = 49,532km or 3.88 x Earths 6 Uranus. Diameter = 51,114km or 4.01 x Earths 7 Saturn. Diameter = 120,534km or 9.45 x Earths 8 Jupiter. Diameter = 142,984km or 11.21 x Earths