Hi folks - here is the Friday Element Quiz Answer: The Question: This element was first discovered in 1898. This element forms a black nitride when exposed to air and reacts strongly with water. This element is a "bone seeker" as the human body metabolizes this element in a similar fashion to Ca and incorporates it into bone tissue elevating cancer risks. The longest lived and most common isotope of this element has a half life of 1600 years. This element was once widely used as a constituent of self luminous paint but the radiation safety issues eliminated this application. What element am I? The Answer: The element is Radium - Ra! Many people are familiar with the use of Ra salts to product self luminous paints for watch dials until the radiation issue was understood and the application eliminated. Marie Curie discovered Ra in 1898 in U ore using a very serious extraction methodology that included Hg distillation. This winner of this week's quiz is Nigel Burtt with Aleks Lozinsky and Dewey Whittaker running a very close second. Drew Meyer also gets bonus points for the luminous paint information. Doug has too much duct tape holding his cubical together so we don't have a quiz prize to send out as we anticipated. Everyone have a good weekend. Dave Hillman Rockwell Collins ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------