Bismuth
HoldTechniques
A heavy chemical element used here to study relativistic effects in bonding.
Why it's here
Placed in Hold: 1 article(s) of evidence from 1 source(s), led by research-stage coverage, with 0 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.
Evidence (1)
- 7Hacker News·7/10/2026researchRelativity reshapes triple bonding in heavy elements
Brown University researchers reported direct spectroscopic evidence that relativistic effects alter the structure of triple bonds in heavy elements such as bismuth. Using photoelectron spectroscopy, they found carbon-bismuth bonds do not match the textbook sigma-plus-two-pi model, suggesting a hybridized bonding structure instead.