The Periodic Table according to astronomers

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• Bonus@lemm.ee ⁨1⁩ ⁨week⁩ ago

  *The Periodic Table according to Michael Jackson

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  • lena@gregtech.eu ⁨1⁩ ⁨week⁩ ago

    He~2~

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    • TachyonTele@lemm.ee ⁨1⁩ ⁨week⁩ ago

      Does that decay into ShNom?

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• HEXN3T@lemmy.blahaj.zone ⁨1⁩ ⁨week⁩ ago

  Ah yes, oxygen, my favourite metal

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  • Bishma@discuss.tchncs.de ⁨1⁩ ⁨week⁩ ago

    Can’t make fire without oxygen. That’s pretty metal 🤟

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    • threelonmusketeers@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

      Fluorine fires have entered the chat.

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    • frigidaphelion@lemmy.world ⁨1⁩ ⁨week⁩ ago

      Lmao I think that particular emoji is sign language for love, not that that isn’t appropriate here

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  • Morphit@feddit.uk ⁨1⁩ ⁨week⁩ ago

    You think that’s air your breathing now?

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    • TachyonTele@lemm.ee ⁨1⁩ ⁨week⁩ ago

      Matrix missed a great chance at an awesome unrealistic underwater flight scene.

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  • quediuspayu@lemmy.dbzer0.com ⁨1⁩ ⁨week⁩ ago

    It sticks to a magnet, that means metal right?

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• pHr34kY@lemmy.world ⁨1⁩ ⁨week⁩ ago

  Do you know what happens to hydrogen when close to 0K?

  Yeah. Metal.

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  • Gladaed@feddit.org ⁨1⁩ ⁨week⁩ ago

    Metallic hydrogen may also make up parts of Jupiter’s core.

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    • SasquatchBanana@lemmy.world ⁨1⁩ ⁨week⁩ ago

      Metallic or solid? Those are two different things, and depending on the answer, i will be going down a knowledge rabbit hole

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    • Shou@lemmy.world ⁨1⁩ ⁨week⁩ ago

      That’s fucking badass

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  • threelonmusketeers@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

    Doesn’t it also need to be under immense pressure? I don’t think low temperature alone is enough.

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    • pHr34kY@lemmy.world ⁨1⁩ ⁨week⁩ ago

      Yeah, I think that may be the case.

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  • TargaryenTKE@lemmy.world ⁨1⁩ ⁨week⁩ ago

    That’s hard af

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  • Klear@lemmy.world ⁨1⁩ ⁨week⁩ ago

    🤘

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• Artyom@lemm.ee ⁨1⁩ ⁨week⁩ ago

  I’m confused, that’s just a periodic table.

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  • threelonmusketeers@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

    Found the astronomer.

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  • Swedneck@discuss.tchncs.de ⁨1⁩ ⁨week⁩ ago

    what? no, a normal periodic table has oxygen and carbon too!

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    • zea_64@lemmy.blahaj.zone ⁨1⁩ ⁨week⁩ ago

      Found the organic chemist

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• Balthazar@lemmy.world ⁨1⁩ ⁨week⁩ ago

  Physicists are notorious for approximating, and astronomers are even worse. But there are some subfields where they care about being more precise, and you maybe break the product table into a handful of elements plus alphas. And there’s that one out two people getting exquisite spectral resolution and signal-to-noise on a few stars and measuring the abundance of Technetium or whatever.

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  • peoplebeproblems@midwest.social ⁨1⁩ ⁨week⁩ ago

    It’s why I fucking love astrophysics. There’s so much handwaving because so much information is observed.

    But without the handwaving you can’t find crazy ass things like nuclear fusion being behind the power of stars. You find these really big numbers everywhere that make the “normal stuff” negligible.

    It not that the precision isn’t important, it’s just not always relevant at particular scales, like the scale of space.

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• oo1@lemmings.world ⁨1⁩ ⁨week⁩ ago

  Plutonium is not a real element.

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  • NoSpotOfGround@lemmy.world ⁨1⁩ ⁨week⁩ ago

    It’s a dwarf element.

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  • Agent641@lemmy.world ⁨1⁩ ⁨week⁩ ago

    Plutonium can be on the periodic table but we do not grant it the rank of element.

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• Tja@programming.dev ⁨1⁩ ⁨week⁩ ago

  What about metallic hydrogen in the core of planets?

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  • niktemadur@lemmy.world ⁨1⁩ ⁨week⁩ ago

    “So, they’re ALL metals?”
    “Always have been.”

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  • threelonmusketeers@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

    Funnily enough, probably not a metal according to astronomers.

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• ornery_chemist@mander.xyz ⁨1⁩ ⁨week⁩ ago

  Iodine is a transition metal I will die on this hill.

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  • threelonmusketeers@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

    Care to defend your position? Iodine is certainly not in the d-block…

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    • ornery_chemist@mander.xyz ⁨1⁩ ⁨week⁩ ago

      The intended joke is that hypervalent iodine compounds like Dess-Martin periodinane different oxidation states like you often see for transition metals. As an example, the mechanism usually drawn for oxidations by DMP is similar to those drawn for, e.g., PCC/Jones reagent, where the electrons removed from the substrate is “banked” at the metal center. Obviously, redox chemistry is not at all limited to transition metals, but I am often surprised at iodine’s propensity to engage in it. A lot of research over the past decade or two has also developed redox catalysis with these reagents, reactivity which is commonly (though again not always) the purview of transition metals.

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• umbrella@lemmy.ml ⁨1⁩ ⁨week⁩ ago

  yOu aRe MadE oF sTardUst

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• RiceMunk@sopuli.xyz ⁨1⁩ ⁨week⁩ ago

  And if you ask a cosmologist what the universe is made of, they go “Well, there’s a lot of dark matter, and even more dark energy. And then there’s a tiny bit of some matter or something idk lol.”

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  • KairuByte@lemmy.dbzer0.com ⁨1⁩ ⁨week⁩ ago

    Read that as cosmetologist and was thoroughly confused.

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• gmtom@lemmy.world ⁨1⁩ ⁨week⁩ ago

  Should also have iron on there too

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• southsamurai@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

  \m/

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• propter_hog@lemmygrad.ml ⁨1⁩ ⁨week⁩ ago

  That’s because these two account for something like 99% of all normal matter in the universe

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