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[-] pHr34kY@lemmy.world 17 points 8 hours ago* (last edited 5 hours ago)

Do you know what happens to hydrogen when the temp drops below 14K?

Yeah. Metal.

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

[-] TargaryenTKE@lemmy.world 2 points 4 hours ago

That's hard af

[-] Gladaed@feddit.org 6 points 6 hours ago

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

[-] SasquatchBanana@lemmy.world 1 points 2 minutes ago

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

[-] Shou@lemmy.world 1 points 1 hour ago

That's fucking badass

[-] Klear@lemmy.world 4 points 7 hours ago
[-] oo1@lemmings.world 9 points 9 hours ago

Plutonium is not a real element.

[-] NoSpotOfGround@lemmy.world 11 points 6 hours ago

It's a dwarf element.

[-] Artyom@lemm.ee 22 points 15 hours ago* (last edited 15 hours ago)

I'm confused, that's just a normal periodic table.

[-] threelonmusketeers@sh.itjust.works 18 points 11 hours ago

Found the astronomer.

[-] Swedneck@discuss.tchncs.de 13 points 12 hours ago

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

[-] zea_64 24 points 9 hours ago
[-] Swedneck@discuss.tchncs.de 14 points 7 hours ago

i mean, i think most chemists are organic

few are free range though

[-] Bonus@lemm.ee 76 points 21 hours ago

*The Periodic Table according to Michael Jackson

[-] lena@gregtech.eu 45 points 21 hours ago
[-] ornery_chemist@mander.xyz 10 points 15 hours ago

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

[-] threelonmusketeers@sh.itjust.works 3 points 11 hours ago

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

[-] ornery_chemist@mander.xyz 3 points 4 hours ago* (last edited 4 hours ago)

The intended joke is that hypervalent iodine compounds like Dess-Martin periodinane flip between 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.

[-] HEXN3T 54 points 21 hours ago

Ah yes, oxygen, my favourite metal

[-] quediuspayu@lemmy.dbzer0.com 8 points 9 hours ago

It sticks to a magnet, that means metal right?

[-] Bishma@discuss.tchncs.de 53 points 21 hours ago

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

[-] threelonmusketeers@sh.itjust.works 26 points 20 hours ago* (last edited 20 hours ago)

Can’t make fire without oxygen

Fluorine fires have entered the chat.

[-] Viking_Hippie@lemmy.dbzer0.com 16 points 18 hours ago

Fluorine fires have entered the chat.

Oh shit, someone call the fluorine fire department to save the chat!

[-] threelonmusketeers@sh.itjust.works 5 points 11 hours ago

call the fluorine fire department

Sometimes there is no such department, especially for the most vigorous fluorinating reagents like chlorine trifluoride: Sand Won't Save You This Time (Derek Lowe)

[-] Viking_Hippie@lemmy.dbzer0.com 5 points 10 hours ago

it can potentially go on to “burn” things that you would normally consider already burnt to hell and gone, and a practical consequence of that is that it’ll start roaring reactions with things like bricks and asbestos tile.

Yeah, that's a big fat nope from me 😬

[-] frigidaphelion@lemmy.world 3 points 20 hours ago

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

[-] Bishma@discuss.tchncs.de 5 points 19 hours ago

Even apart from sign language, it's the hand sign for "hang loose" and not "throwing horns." But was as close as I could get.

[-] moakley@lemmy.world 2 points 1 hour ago

Pretty sure that's the emoji for "thwip".

[-] Morphit@feddit.uk 16 points 21 hours ago* (last edited 21 hours ago)

You think that's air you're breathing now?

[-] Tja@programming.dev 14 points 18 hours ago

What about metallic hydrogen in the core of planets?

[-] threelonmusketeers@sh.itjust.works 7 points 11 hours ago

Funnily enough, probably not a metal according to astronomers.

[-] niktemadur@lemmy.world 14 points 15 hours ago* (last edited 15 hours ago)

"Wait, they're ALL metals?"
"Always have been."

[-] Balthazar@lemmy.world 22 points 20 hours ago* (last edited 13 hours 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 periodic table into a handful of elements plus alphas. And there's that one or two people getting exquisite spectral resolution and signal-to-noise on a few stars and measuring the abundance of Technetium or whatever.

[-] peoplebeproblems@midwest.social 18 points 19 hours 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.

[-] umbrella@lemmy.ml 7 points 18 hours ago

yOu aRe MadE oF sTardUst

[-] southsamurai@sh.itjust.works 4 points 20 hours ago
this post was submitted on 12 Feb 2025
548 points (100.0% liked)

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