On 3 Feb 2017 at 7:30, David Hillman wrote: > Here is the Element Quiz Question: > > The Question: > This element was discovered as a result of experimentation with electrodes > for batteries. This element is an important industrial chemical. A hydride > of of this element makes an effective booster for rocket fuel. The pure > form of this element does not exist in nature. A specific isotope of this > element causes semiconductor fabricators major problems. Which element is > being described? I vote for Boron Regards Matthias Mansfeld -- Matthias Mansfeld Elektronik * Printed Circuit Board Design and Assembly Neithardtstr. 3, D-85540 Haar, GERMANY Phone: +49-89-4620 0937, Fax: +49-89-4620 0938 Internet: http://www.mansfeld-elektronik.de OpenPGP: http://www.mansfeld-elektronik.de/gnupgkey/mansfeld.asc Fingerprint: 6563 057D E6B8 9105 1CE4 18D0 4056 1F54 8B59 40EF