Francium
Bev's description leads there.
On Sat, Oct 29, 2011 at 5:59 PM, Bev Christian
<[log in to unmask]>wrote:
> Well I consider this one another tuffy.
>
> Radioactive elements? That's the easy part:
> Technetium
> Polonium
> Astatine
> Radon
> Francium
> Radium
> Actinium
> Thorium
> Protactinium
> Uranium
> Neptunium
> And then the new ones, usually man-made.
>
> I know technetium, radium (watches), thorium and uranium (have used UF6
> myself)are long lived, leaving:
> Polonium
> Astatine
> Radon
> Francium
> Actinium
> Protactinium
> Neptunium
> And then new ones, usually man-made.
>
> Then looking each up in Wikipedia and NIST for isotopes and half lives:
> Long half life # of isotopes
> Polonium 103 years 33
> Astatine hours 31
> Radon 3.8 days 34
> Francium 21.8 minutes 34
> Actinium 21 years 31
> Protactinium 32,760 years 29
> Neptunium years
> And then new ones, usually man-made. 20 or less (found so far)
>
> So, it looks like astatine is the answer, which is what Thomas A. Carroll
> suggested. However, I'm still going to guess radon, since it says in
> Wikipedia: "Although colorless at standard temperature and pressure, when
> cooled below its freezing point of 202 K (-71 °C; -96 °F), radon has a
> brilliant phosphorescence which turns from yellow to orange-red as the
> temperature is lowered." I will assume that for Dave 91.2 hours is still
> "a few" and he has an old source that only lists 31 isotopes instead of 34.
> If I'm wrong, well it has been fun anyways.
>
> Bev
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman
> Sent: Friday, October 28, 2011 8:14 AM
> To: [log in to unmask]
> Subject: [TN] NTC Friday Element Quiz - the Question
>
> Hi folks - Here is the Friday Element Quiz Question:
>
> The Question:
>
> This element is highly unstable and very dangerous due to its intense
> radioactivity. This element has 31 isotopes but none have a half life of
> more than a few hours. When this element is cooled below its freezing
> point, it phosphoresces brightly. What element is being described?
>
>
> Bonus question: Name the country where this element was initially
> discovered, and name the university/country who is given credit for the
> discovery of the element.
>
>
> The winner of the weekly element quiz will get the services of Clumpy and
> Kloumpios for the week.
>
> So far Clumpy and Kloumpios have:
>
> Week 1 Lamar Young, SCS Coatings
> - accomplished nothing (drank lots of coffee)
>
> Week 2 Bev Christian, RIM
> - conducted REACH material testing
>
> Week 3 Drew Meyer, Benchmark Electronics Inc.
> - Solderability testing and mowed the lawn
>
> Week 4 Ian Fox, Goodrich
> - had an epic journey of travel
>
> Week 4 Gary Ferrari, Garrick Global
> - unknown
>
> Week 5 Fredrick Miller, Astrolab
> - unknown
>
> Week 6 David Nelson, Raytheon
> - Were tackling dummys for Dallas Cowboys
>
> Week 7 Graham Collins, L3 Communications
> - Cleaned gutters and painted window trim
>
> Week 8 Bill Noel, ITT Geospatial Systems Division
> - unknown
>
> Week 9 Steve Gregory of RD Circuits
> - unknown
>
> Week 10 David Bealer of Watchfire Signs
> - descaled the in-line wash machine! Ouch!
>
> Week 11 Dick Krug of Sparton Corporation
> - assisted with AS9100 quality management systems requirements audit
>
> Week 12 Steve Creswick of Balanced Enterprise Solutions
> - Acted as Steve's "go fer" due to a broken leg!
>
> Week 13 Gebhard Neifer, Delphi
> - conducted a plasma pre treatment Taguchi DOE for a sealing process
>
> Week 14 Bev Christian, RIM
> - assisted with a tin pest investigation/test
>
> Week 15 Bev Christian, RIM
> - assisted Bev shoveling snow
>
> Week 16 David Bealer of Watchfire Signs
> - assisted with reflow profiling
>
> Week 17 Brian Ellis, rumored to be retired
> - assisted with rewiring the house, had a tractor accident and found his
> cousin Kloumpios
>
> Week 18 Denny Fritz, SAIC
> - assisted with tin whisker inspection/examinations
>
> Week 19 Graham Collins, L3 Communications
> - assisted with scraping barnacles, boat paint and boat engine maintenance
>
> Week 20 Mark Woolley, PTRL Laboratory Avaya
> - assisted with weather observations (70F to snow) and resolving
> electrochemical migration failures
>
> Week 20 Tom Carroll, Boeing Defense, Space and Security
> - assisted with commercial aircraft galley inspection
>
> Week 21 Brian Ellis, supposedly retired, and Tom Carroll, Boeing Defense,
> Space and Security
> - assisted with root cause corrective action tasks
> - assisted with nothing but catching up with the family
>
> Week 22 Drew Meyer, Benchmark Electronics Inc.
> - assisted with metallographic cross-sections and Dye & Pry testing
>
> Week 23 Bev Christian, RIM
> - assisted with a creep corrosion project and the setting up of an oxygen
> bomb
>
> Week 24 Steve Gregory, RD Circuits
> - unknown
>
> Week 25 Ahne Oosterhof, A-Laser
> - assisted with stencil aperture data analysis and split/stacked firewood
>
> Week 26 Scott Post, Delphi
> - assisted/participated in the Kokomo Airshow Race Event
>
> Week 27 Brian Ellis, supposedly retired
> - assisted with tedious website work and family home cooking
>
> Week 28 Nigel Burtt
> - abandoned Nigel and were rumored to be involved in UK News Corps/News
> International cellphone/journalism/politics scandal
>
> Week 29 Richard Stadem,GD-AIS
> - unknown
>
> Week 30 Robert Wolfe, Kimchuk Inc and Graham Naisbitt, Gen3
> - assisted with a hot tub refurbishment for post work day de-stressing
> - assisted with SIR and Cleanliness testing
>
> Week 31 Bev Christian, RIM Inc, and Denny Fritz, SAIC
> - assisted with lab testing
> - assisted with tin whisker investigations
>
> Week 32 Steve Mikell, supposedly retired
> - attempted to provide both US Congress and EU lawmakers "engineered"
> solutions
>
> Week 33 Mark Woolley, PTRL Laboratory Avaya
> - unknown
>
> Week 34 Leland Woodall, CSTech Inc.
> - assisted with new model qualifications,updating supporting
> documentation, strain gaging, performing cross sections, verifying a new
> selective soldering process, and finally assisted with the development of
> a plant-wide countermeasure effectiveness auditing program (Wow, they had
> to work hard this week!)
>
> Week 35 Joe Russeau, Precision Analytical Laboratories
> - assisted with new equipment preparations
>
> Week 36 Patrick Goodyear, PGE
> - assisted with beach trash collection duty
>
> Week 37 Dave Elder, Tait Radio Communications
> - assisted Dave Hillman with a geography lesson, watch USA vs Irland in
> World Rugby Cup and went skiing.
>
> Week 38 Steve Mikell, supposedly retired
> - assisted with ????
>
> Week 39 Andy Giamis, Commscope
> - assisted with metallographic cross-sectional analysis of die cast Mg and
> taught a group of Cub Scouts how to hotwire a tractor
>
> Week 40 Gebhard Neifer, Delphi
> - assisted with a customer audit
>
> Week 41 Ian Fox, Aero Engine Controls
> - assisted with pcb cross-section analysis
>
> Week 42 Andy Giamis, Commscope
> - Andy gave them the week off (BBQ and English ale party)
>
> Week 43 ???
> - assisted with ????
>
>
> Everyone have a safe week.
>
>
> Dave Hillman
> Rockwell Collins
> [log in to unmask]
>
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