Helium was first discovered in the
A)laboratory.
B)upper atmosphere.
C)Sun.
D)island of Helios, in Greece.
E)byproducts of nuclear fusion.

Question

Quizplus · Accepted Answer

Helium was first discovered in the Sun's spectrum by Jules Janssen and Joseph Norman Lockyer in 1868, before it was found on Earth. They noticed a yellow spectral line in the Sun's light during a solar eclipse and realized it was due to an element not yet discovered on Earth, which they named helium after the Greek god of the Sun, Helios.

Helium Was First Discovered in the