Closed Elementary, my dear Watson

[Claire Yeon]

Does this element's name begin with a vowel?

Yes.

Three guesses remain.

 

[Chase]

Does this element have the atomic number of 77?

 

[Claire Yeon]

Does this element have the atomic number of 77?

That's the one.

Iridium, atomic number 77, is among the hardest, shiniest, and most dense of the elements. It is quite rare in the Earth's crust, but abundant (by comparison) in meteorites. Its high melting point and resistance to corrosion make it extremely useful for everything from spark plugs to production of antimatter. It is also the only metal to maintain good mechanical properties at temperatures above 1,600 °C. I trust you will use that information how you see fit.

 

[Joe Kerr]

@Zack and @Nevon ...NO anti-matter devices!!!

 

[Eugene]

@Zack and @Nevon ...NO anti-matter devices!!!

Thanks for exempting me. I'm sure bunker research has already made inroads here.

 

[Chase]

Coincidentally, iridium is my favorite element. Started when I was a kid, my father introduced me to Montblanc iridium tips.