Question

Via an unusual, poorly understood mechanism, this metal explodes on contact with perchloric acid. A compound of this metal with an unusual crystal structure includes tubes made of rhombic dodecahedra of this element and oxygen that are partially filled by more oxygen; that substance, formed by heating this metal’s oxychloride, is Arppe’s compound. A compound of sodium and this metal is a “3D graphene” that is the first known three-dimensional topological Dirac semimetal. This metal’s vanadate is the most powerful known catalyst for the (*) photooxidation of water. Most topological insulators are based on this metal; (-5[1])the first known one was this metal’s antimonide. (10[2]-5[1])Besides pyrolytic carbon, this metal is the most diamagnetic substance known. (10[2])In 2003, this metal’s 209 isotope was found (10[1])to be very weakly radioactive. (10[1])For 10 points, name this metal that was once thought to be the heaviest (10[1])stable element. (10[1])■END■ (10[2])

ANSWER: bismuth [or Bi]
<Gerhardt Hinkle, Chemistry>
= Average correct buzz position

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Summary

2023 Chicago Open08/05/2023Y10100%0%20%124.50

Buzzes

PlayerTeamOpponentBuzz PositionValue
Billy BusseBHSUThe Plague (anime)" was redirected to: "Oran High School Host Club94-5
Iain CarpenterDon't be Afraid, the Clown's Afraid TooHang et al., Robert Browning10210
Vincent DuQuasicrystal Silence[moderator voice] yes that is so tenpointscore! is your team feeling bonuspilled?10210
Andrew WangThe anti-STOON-dahl cabal (the tall Keyal et al.)The Catastrophic Implosion of Packet Sub102-5
Jerry VinokurovTeach Us to Outgrow Our Ladnessremembrance of lost time11310
Eric MukherjeeCurse you, Periplus the Platypus!Romanos IV Diogenes’ Macaroni Grill11310
Mike SoriceTeam Name Think DetailSaint Peter Andre 300012110
Kevin WangI would prefer not toIn Search of Things Past12610
Vedul PalavajjhalaI prefer really not to speak. If I speak I’m in big troubleEvans Hall destruction awaiters14010
Geoffrey ChenThe Plague (anime)" was redirected to: "Oran High School Host ClubBHSU14210
Adam FineThe Catastrophic Implosion of Packet SubThe anti-STOON-dahl cabal (the tall Keyal et al.)14310
Chris SimsThe Canadianswave2: trimming membership codes 9655377758gp14310