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   Geoff 🏴󠁧󠁢󠁳󠁣󠁴󠁿 (_thegeoff@mastodon.social)'s status on Tuesday, 17-Jun-2025 05:24:34 JST Geoff 🏴󠁧󠁢󠁳󠁣󠁴󠁿

   How often have you heard of Hydrogen (specifically the 1 isotope) being referred to as "protium"? Chemistry teacher mentioned it today as part of a "...deuterium, tritium" isotope intro, and I can think of maybe two or three times I've heard that name used. Something specific to folk working with H isotopes?

   • GreenSkyOverMe (Monika) repeated this.
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     Geoff 🏴󠁧󠁢󠁳󠁣󠁴󠁿 (_thegeoff@mastodon.social)'s status on Tuesday, 17-Jun-2025 05:24:37 JST Geoff 🏴󠁧󠁢󠁳󠁣󠁴󠁿

     in reply to

     Wasn't actually a name being taught - the teacher showed the diagrams, identified deuterium and tritium by name, and then mentioned they were sure there was an isotope-specific name for H1, and as I was also sure I'd heard of it at some point I went and looked it up. I think I may have heard of it in reference to Hydrogen not actually having a correct place in the periodic table, it's not actually group 1? Kind of like it's the "zero-eth element".