http://chemistry.about.com/od/geochemistry/a/sunelements.htm http://chemistry.about.com/od/geochemistry/a/sunelements.htm http://chemistry.about.com/od/geochemistry/a/sunelements.htm http://chemistry.about.com/od/geochemistry/a/sunelements.htm http://chemistry.about.com/od/geochemistry/a/sunelements.htm http://chemistry.about.com/od/geochemistry/a/sunelements.htm http://chemistry.about.com/od/geochemistry/a/sunelements.htm http://chemistry.about.com/od/geochemistry/a/sunelements.htm Elemental composition of the Sun mostly hydrogen