Iron.
The Sun is a star fusing elements to generate energy. It is not alive and therefore your question makes no sense.
In a process known as nuclear fusion, hydrogen is constantly fused into helium.
Inside the Sun, it is mainly hydrogen-1 fusing into helium-4.
At the age the sun is now it is still fusing hydrogen into helium.
Yes it does. It produces helium by fusing hydrogen
Any elements in the sun's atmosphere other than hydrogen or helium were provided by earlier supernovas that exploded before the sun formed.The hydrogen and much of the helium in the sun's atmosphere originated directly in the big bang and have not changed since then.Some of the helium in the sun's atmosphere passed up in convection currents from the sun's core where it is fusing hydrogen to helium.
No, a white dwarf is a small, dense star that has exhausted its supply of nuclear fuel and is no longer able to sustain nuclear fusion reactions in its core. White dwarfs are the remnants of stars that were once similar to the Sun, and they are typically about the size of Earth but much more massive. They are called "white" dwarfs because they are extremely hot and glow with a white-hot light, but they are not capable of fusing elements because they do not have the necessary conditions (temperature, density, and pressure) to sustain nuclear fusion in their cores.
Older age might account for it. As a star ages, it uses up the simplest elements (hydrogen . . . helium . . .) then starts fusing heavier and heavier elements. Our Sun will get to the point of fusing iron, which is pretty heavy, but the truly large stars out there will fuse elements much heavier than Iron. These heavier and heavier elements may account for some stars having more complex elements in their spectra.
At this point in time hydrogen is being fused into helium. Many, many years down the line, as the hydrogen runs out, the sun will begin fusing heavier and heavier elements for fuel. At least to iron.
It will switch to helium fusion and so on until it starts fusing much heavier elements and becomes a red giant ********************************************************************* As our sun is one of the smaller G Class stars, it will eventually burn itself out and die along with the planets it services.
Ha, the Sun gets its "food" by fusing hydrogen into helium.
Hydrogen fusing into helium