arsenic
Concept
Mentioned as an example of toxicity due to its similar valence electron count to phosphorus, leading to the accidental formation of unstable molecules in cells.
Mentioned in 2 videos
Videos Mentioning arsenic

#71 – Katherine Eban: Widespread fraud in the generic drug industry
Peter Attia MD
A poisonous substance that tainted a cough syrup in the 1930s, leading to child deaths and galvanizing public sentiment for the creation of the FDA.

What If Alien Life Were Silicon-Based?
PBS Space Time
Mentioned as an example of toxicity due to its similar valence electron count to phosphorus, leading to the accidental formation of unstable molecules in cells.