what is the emission spectrum of the sun and what does this spectrum reveal about the types of elements in the sun?
3 answers
The emission spectrum is a group of lines associated with the elements in the sun. The atoms become excited due to the intense energy; light is emitted when the atoms return to their ground state (or at least to their less excited state). Identification of the lines will tell which elements are in the sun. In fact, some unknown elements (at the time) were discovered on the sun before they were discovered on earth.
http://en.wikipedia.org/wiki/Electromagnetic_spectroscopy
Because of the nature of the question I answered only with regard to lines of elements; however, you should be aware that there is a continuum from the sun, also.
2 answers