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74% of this Universe's and the Sun's mass is Hydrogen[edit]
It's important to be accurate in science. This article refers to "roughly 75% of this Universe's mass is hydrogen". It's 74% and there are many good websites that confirm this - do a google search. Also, the Sun's mass is 74% hydrogen. 73.46.49.164 (talk) 05:43, 14 November 2017 (UTC)
Regarding accuracy -- the Sun is constantly turning Hydrogen into Helium...so that 74 percent figure won't be true forever. It is an accident of being at the right time -- 5 billion years -- after the Sun's formation. So...on that basis...I think "roughly 75 percent" sounds right. Chesspride 172.164.0.124 (talk) 08:54, 30 July 2018 (UTC)
Is the light gas in the air it is made up of 78pacent.the only thing i what to know is that what are the chemical and physical properties of hydrogem — Preceding unsigned comment added by 41.59.35.203 (talk) 13:04, 1 March 2018 (UTC)
Most of these properties are listed in the infobox, right in top. Meaninful or special properties are also described in the article text. Is there a property you are missing? - DePiep (talk) 14:40, 1 March 2018 (UTC)
Most of air is made of nitrogen. Only a small amount of hydrogen is found in the atmosphere, mostly in the form of water vapour. Graeme Bartlett (talk) 22:00, 1 March 2018 (UTC)