Talk:Oxygen
Latest comment: 3 months ago by Polyamorph in topic oxygen is not the most abundant element on earth. iron is
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Oxygen-15 natural occurrence edit
Shouldn't oxygen-15 be listed as "trace" rather than "synthetic" , since trace ammounts are produced naturally by lightning and in the sun. 174.103.211.189 (talk) 04:20, 7 December 2023 (UTC)
oxygen is not the most abundant element on earth. iron is edit
thought that should be changed 2605:A601:AA0D:F900:9CA4:FB25:36E:D726 (talk) 05:51, 6 January 2024 (UTC)
- Oxygen is the most abundant specifically on Earth’s crust 99.17.2.140 (talk) 08:50, 16 January 2024 (UTC)
- Define abundance. By number fraction, i.e., actual number of atoms, oxygen is by far more abundant over the entire Earth. There is a greater mass fraction of iron but that's simply because it's heavier. However, as stated in the article, there is a greater abundance of oxygen by mass in the Earth's crust and biosphere. Polyamorph (talk) 13:15, 16 January 2024 (UTC)