The element first found in the Sun's spectrum, then on Earth 30 years later, is:
A)hydrogen.
B)helium.
C)solarium.
D)technetium.
E)aluminum.

Name: The element first found in the Sun's spectrum, then on Earth 30 years later, is: A)hydrogen. B)helium. C)solarium. D)technetium. E)aluminum.
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Helium was first discovered in the Sun's spectrum in 1868, and then found on Earth in uranium ores 30 years later. Helium was first discovered in the spectra of the Sun in 1868, and was later found on Earth in 1895.

The Element First Found in the Sun's Spectrum, Then on Earth