Doesn't Thulium have 58 Isotopes (23 Isomers, 34 Radioactive Isotopes plus the one stable)?

Ron

Ron Feyereisen
Continuous Improvement Mgr., CIT

www.sigmatronintl.com



-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman
Sent: Monday, February 03, 2014 1:06 PM
To: [log in to unmask]
Subject: [TN] NTC Friday Element Quiz Answer

Hi folks - Here is the Friday Element Quiz Answer (sorry for getting this out late - blame it on Minnesota ice):

The Question:
This element has 46 isotopes but only one is stable. This element is so scarce that 500 tons of ore must be processed to extract 4 kilograms of the element. It has very few commercial uses - it has been used for portable x-ray sources and in laser applications. The dust of this element 

is both toxic and explosive. What element is being described?

The Answer:
The element is Thulium (Tm)! Thulium derives its name from Thule, the Greek word for Scandinavia. Thulium is very rare in terms of being a Rare Earth Element(REE)- it ranks 16th out of 17th. Monazite sand contains about 50% REE content but of that 50% value, only 0.007% is thulium. 
Tm-169 is the only stable isotope of thulium.


The winner of the weekly element quiz is Steve Gregory and he will get the services of Clumpy and Kloumpios for the week. The boys should be arriving at your facility anytime now.


So far Clumpy and Kloumpios have done the following:

Past Quiz winners/tasks:
Week 1 Dick Krug,  Spartan Complex Systems Week 2 Laura Turbini, IRC Week 3 James Head, Crowcon Detection Instruments Limited Week 3 Pat Goodyear, PGE Week 4 Joe Russeau, Precision Analysts Laboratory Week 5 Tom Carroll, Boeing Defense, Space and Security Week 6 Steve Gregory Week 7 Phil Kinner Week 8 Brian Ellis Week 9 James Head, Crowcon Detection Instruments Limited Week 10 Leland Woodall, CSTech Inc.
Week 11 Keith Calhoun, Sopark Corp
Week 12 Matthias Mansfeld, Mansfeld-Elektronik Week 13 Leland Woodall, CSTech Inc.
Week 14 Brian Ellis
Week 15 Tom Carroll, Boeing Defense, Space and Security Week 16 Steve Gregory Week 17 Phil Kinner Week 18 Ian Braddock, MBDA Systems Week 19 Leland Woodall, CSTech Inc.
Week 20 Denny Fritz
Week 21 Amol Kane
Week 21 Dewey Whittaker, Honeywell
Week 21 David Bealer, Watch Fire Signs
Week 22 Phil Kinner
Week 23 Guy Ramsey, RD Circuits
Week 24 Mark Kostinovsky, Schlumberger
Week 25 Keith Calhoun, Sopark Corp
Week 26 Paul Reid, PWB Interconnect Solutions Inc Week 27 Greg Munie, IPC Week 28 Steve Gregory Week 29 Gus Trakas, Viasystems Week 29 Steve Creswick Week 30 Robert Welch, Moog Component Group Week 31 Heidi Havelka, Interplex Sunbelt Week 32 Raye Rivera, Canoga Perkins Week 33 Steve Creswick Week 34 Dewey Whittaker, Honeywell Week 35 Don Vischulis Week 36 Greg Munie, IPC Week 37 Larry Dzaugis Week 37 Bonus Question Steve Mikell Week 38 Curt McNamara, Logic PD Week 38 Bonus Question Dewey Whittaker, Honeywell

Week 39 Leland Woodall, CSTech Inc.
- Tell the guys I'm giving them a late Christmas present, and they can spend the week at home with their wives fulfilling their own set of chores.  Maybe they'll get a chance to get back to NC a little later on in the year, and it will be warm enough to go fishing at the coast.

Week 40 Leland Woodall, CSTech Inc.
- assisted with ????

Week 40 Ron Feyereisen, Sigmatron Int.
- assisted with ????

Week 41 Steve Gregory
- assisted with ????


Everyone have a safe week.

Dave Hillman
Rockwell Collins
[log in to unmask]


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