praseodymium 

> On Aug 10, 2021, at 4:07 PM, Hillman, David D Collins <[log in to unmask]> wrote:
> 
> The Element Quiz winner gets the services of our outstanding/amazing gnomes Clumpy and Kloumpios for the week (they have had their vaccination shots and can follow any covid-19 protocols the winner decides).
> 
> The Question:
> This element was first discovered in Mexico in a sample of lead ore and given the name "erythronium".  This element is a metal that is heavier than aluminum but lighter than iron. Combining this element with glass, a filter that blocks ultraviolet light can be produced. Combining this element with iron produces a corrosion resistant steel. What element is being described?
> 
> 
> The winner of the Quiz will get the assistance of the boys for the week. Looking for your responses by 3PM CST USA.
> 
> Winners:
> Week 1: Bhanu Sood, NASA
> Week 2: Eddie Hofer, Collins Aerospace
> Week 3: John Maxwell
> Week 4: Scott Decker, Collins Aerospace
> Week 5: ???
> 
> Dave