I think it is Lead (right Lealand?) Please put it back in my solder . . . and give me the flux that smells good! Carl B. Van Wormer, P.E., AE7GD Senior Hardware Engineer Cipher Engineering LLC 21195 NW Evergreen Pkwy Ste 209 Hillsboro, OR 97124-7167 503-617-7447x303 [log in to unmask] http://cipherengineering.com -----Original Message----- From: TechNet <[log in to unmask]> On Behalf Of David Hillman Sent: Friday, July 13, 2018 4:58 AM To: [log in to unmask] Subject: [TN] Element Quiz Question The Question: This element was known to ancient civilizations (at least 5500 BC). A pure bar of this element will "cry" when bent due to the twinning of its crystal structure. One of the early Latin words for this element was "plumbum candidum". A major commercial application for a compound containing this element is the stabilization of PVC plastics.The International Maritime Organization has a worldwide ban of a compound containing this element. Which element is being described?