Multiple choice general knowledge

The place Copenhagen appeared recently in Headlines for the summit regarding Global Warming. Which element is named after that place?....

  1. Molybdenum

  2. Hafnium

  3. Darmstadtium

  4. Gadolinium
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hafnium (Hf, atomic number 72) is named after Copenhagen (Hafnia in Latin). Copenhagen hosted the 2009 UN Climate Change Conference, which brought global attention to the city. Hafnium was discovered in 1923 by Coster and Hevesy, who named it after their city of Copenhagen. The element is a lustrous, silvery metal used in nuclear reactors and electronics.

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