this post was submitted on 28 Jan 2026
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xkcd #3200: Chemical Formula

Title text:

Some of the atoms in the molecule are very weakly bound.

Transcript:

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Source: https://xkcd.com/3200/

explainxkcd for #3200

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[–] kopasz7@sh.itjust.works 2 points 1 month ago (4 children)

Still can't find blackholium, what element number is it?

[–] Trail@lemmy.world 2 points 1 month ago (3 children)
[–] palordrolap@fedia.io 3 points 1 month ago (1 children)

-1 would be antihydrogen. Blackholium is whatever number is large enough to cause gravitational collapse, so probably one or two more than the largest neutron star.

[–] Trail@lemmy.world 1 points 1 month ago

Yeah I was more like referring to an overflow or something.

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