'Witnesses to the octet rule 78 7.2 Exceptions to the UN' value $600 answer an echo chamber round Double Jeopardy! Show_number 4468 category 11/30 air_date 2004-01-28 question 'On parts of a thousand times as much confidence in these' value $1600 answer Henry Bessemer round Jeopardy! Show_number 2982.