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By mass

Hydrogen 71.0 %
Helium 27.1 %
Oxygen 0.97%
Carbon 0.40%
Nitrogen 0.096%

2007-12-02 13:11:03 · answer #1 · answered by t 2 · 0 0

75% hydrogen-------- 25% helium approximately with less than .1% being other substances.
http://www.enchantedlearning.com/subjects/astronomy/sun/

2007-11-28 13:23:56 · answer #2 · answered by Bullseye 7 · 4 0

Hi. Here is a breakdown by mass and atoms. http://hyperphysics.phy-astr.gsu.edu/hbase/tables/suncomp.html

2007-12-01 10:53:36 · answer #3 · answered by Cirric 7 · 0 0

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