Plasma.
"The core is made of hot, dense gas in the plasmic state"
Because the sun made of hydrogen and helium, which at the temperatures the sun sustains cannot maintain a liquid or solid form. The sun is actually primarily made of plasma. Plasma is considered by some scientists to be a unique form of gas, and by others to be a different form of matter, entirely its own.
Yes, any ionized gas is a plasma.
radiation carried by convection.
It is a very bright mass of roiling gas or plasma.
Plasma.
it isn't a solid, liquid, nor a gas. IT IS PLASMA :P
Hydrogen.
"The core is made of hot, dense gas in the plasmic state"
Most stars' surfaces are plasma. Plasma is the state of matter above gas, at which molecules move so rapidly that they generate an electric current. An example of plasma on Earth is lightning. Therefore, in layman terms, you could say that the sun's surface is made of lightning. Of course, that's not entirely accurate, but is certainly more so than liquid or gas.
The Sun does not have a "crust"; the surface of the Sun is 12,000 degree-hot hydrogen plasma.
It is called a sunspot.
A region of turbulent plasma between the suns core and its visible photosphere at the surface, through which energy is transferred by convection. In the convection zone, hot plasma rises, cools as it nears the surface, and falls to be heated and rise again.
A prominence is when a solar flare ejects matter from the suns surface as a stream of incandescent gas.
Plasma can occur anywhere where there is extreme heat, plasma is not a substance but the fourth state after solid, liquid and gas. It is effect superheated gas, an example is the glow on the nose of the shuttle as it re-enters the atmosphere, another is the surface of the sun.
Gas is the least common on Earth.