I don't think there is such a thing as a planet having a gas core. Even the gas giants have some solid material at their centers.
No, it has a large iron core, which generates a magnetic field about 1% as strong as that of the Earth
no, Mercury is a solid planet.
Solid, iron core
The inner core is made out of iron and nickel and it is a solid.
Mercury is made of rock with a solid inner core.
The iron core of the earth is solid because the immense pressure near the center of the earth, due to gravity, keeps the iron in a solid state, even though it is hot.
Outer core - predominately liquid iron and nickel. Inner core - predominately solid iron and nickel.
Solid, iron core
iron core ice caps solid surface :)
it has an iron core
Iron.
The inner core is made out of iron and nickel and it is a solid.
Yes
The inner core is mainly solid iron, with a liquid iron outer core.
the inner core is a solid. specifically solid nickel/iron alloy. the outer core is a liquid. specifically liquid nickel/iron alloy. both are composed of the same nickel/iron alloy. an alloy very similar to the alloy that makes up metallic meteorites.
Good question. But I have to say no. Mercury's core is not made out of lava. Its core is made out of iron. But mercury was formed by volcanos and still has active volcanoes on it.
It is solid in iron.
Solid metals
Mercury is made of rock with a solid inner core.