The planet Mercury is thought to be mostly iron, about 70% of the planet's mass. It is covered by a comparatively thin crust of rock, including mountains and plains. Mercury has many craters from asteroid and meteor impacts, primarily due to the lack of an atmosphere.
The composition of Mercury's very thin, ionized atmosphere :
42% Molecular oxygen
29.0% sodium
22.0% hydrogen
6.0% helium
0.5% potassium
Trace amounts of argon, nitrogen, carbon dioxide, water vapor, xenon, krypton, & neon
Water ice, left over from impacting objects, may exist at the bottom of craters near either pole. The heat on the sunward side has apparently not melted the rock to smooth out the impact craters, and the atmosphere is too thin to carry much heat to the poles or the night side.
The planet Mercury is the densest of all the planets and consists of approximately 70% metallic and 30% silicate material.
Mercury is made up of 42% molecular oxygen 29.0% sodium 22.0% hydrogen 6.0% helium 0.5% potassium
Planet Mercury was zero years of age when it was made.
Mercury is a planet made of rock and metal.
what made the tracks on planet mercury is rover, the space robot, who was sent from the nasa space station to look for any sign of human life on planet mercury.
Mercury is a rocky planet.It's actually a rock because it is one of the inner planets that are all made of rock.The planet Mercury is a dense, rocky, airless world.
Mercury is a rocky planet.
mercury is made of iron and metal!
Mercury has alot of rocks on is planet because t is made up of rock !
the planet is a solid but mercury is a gas as well
No. The element mercury contains only mercury atoms. The planet Mercury is made mostly of silicon, oxygen, and iron.
mercury
Yes. All matter on Mercury is made up of chemicals.
Mercury is a planet.