Multiple choice general knowledge science & technology

Which of the following was to be discovered first in the chromospheres of the sun?

  1. Krypton

  2. Xenon

  3. Neon

  4. Helium

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Helium was first discovered in the solar spectrum in 1868 by Norman Lockyer and Pierre Janssen, who noticed a spectral line (D3 line) that didn't match any known element - 25 years before it was found on Earth. The name means 'sun element'. Krypton, xenon, and neon were discovered later through terrestrial means.