The perfect wordplay doesn't exi— Oh wait, it's bismuth! This brilliant chemistry pun plays on the double meaning of "Bi" - both the chemical element bismuth and a shorthand for bisexuality.
Every single bullet point is actually describing bismuth (element 83) with scientific accuracy. It forms those gorgeous cubic crystal structures that look like tiny rainbow staircases when oxidized. And yes, it's technically radioactive with the absurd half-life of 2×1019 years - billions of times longer than our 13.8-billion-year-old universe.
Chemistry humor that works on multiple levels? That's just showing off. Next they'll tell us that carbon is straight because it forms chains...