Multiple choice general knowledge science & technology

Which element is named after Copenhagen, Denmark?

  1. Arsenic

  2. Cobalt

  3. Hafnium

  4. Copper
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hafnium (Hf, atomic number 72) is named after Copenhagen, Denmark - 'Hafnia' is the Latin name for Copenhagen. Arsenic, Cobalt, and Copper are not named after Danish cities. Hafnium was discovered in 1923 by Coster and Hevesy in Copenhagen.

AI explanation

To answer this question, you need to be familiar with the names of chemical elements.

Option A) Arsenic - This option is incorrect because Arsenic is not named after Copenhagen, Denmark.

Option B) Cobalt - This option is incorrect because Cobalt is not named after Copenhagen, Denmark.

Option C) Hafnium - This option is correct. Hafnium is named after Copenhagen, Denmark. The name "Hafnium" is derived from "Hafnia," which is the Latin name for Copenhagen.

Option D) Copper - This option is incorrect because Copper is not named after Copenhagen, Denmark.

The correct answer is C) Hafnium. This option is correct because Hafnium is the element that is named after Copenhagen, Denmark.

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