From a metallurgists standpoint, expansion on freezing, well known trait of Bi. Also just for a bit of added info, what is special about a BiCd alloy? Regards Ian -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Bev Christian Sent: 18 June 2010 21:00 To: [log in to unmask] Subject: Re: [TN] NTC Friday Element Quiz - the Answer Dave, What made it easy was the pharmaceutical bit - PeptoBismol, a colon's friend! Don't get me started. :) Bev -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman Sent: Friday, June 18, 2010 3:57 PM To: [log in to unmask] Subject: [TN] NTC Friday Element Quiz - the Answer Hi gang! Ok, here is the Friday Element Quiz: The Question: This element expands during solidification which is odd behavior for a metal and a very active topic of materials research. This element has the highest diamagnetism of any metal. The electrical conductivity of this element's solid phase is lower than it's liquid phase. This element is normally nontoxic to humans but cases have been documented where bacteria have converted pharmaceuticals containing this element from water insoluble to water soluble compounds resulting in poisoning. This element is produced as a by product of Cu and W mining. Who am I? The Answer: I am Bismuth! Looks like I'll have to make the next quiz a bit tougher - Ian Fox was first with Bev Christian, Drew Meyer, and Tom Carroll very close behind. Ken Bloomquist gets honorable mention - I had to look up what "Pyrolytic Carbon" was! I suspect that Doug will be asking "where's my chair" so I'll be sure to tell him to contact Ian for an answer. Heck of a way to start back into work after being gone for a week - just think of Doug sitting on the floor! Everyone have a fun weekend. Dave Hillman Rockwell Collins [log in to unmask] ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. 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