Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 33 - Astrophysics and Cosmology - Misconceptual Questions: 8

Answer

Choice D.

Work Step by Step

It took hundreds of thousands of years for the universe to cool sufficiently from the Big Bang, to a point where the temperature was low enough for fast-moving nuclei and free electrons to even form atoms (mostly hydrogen). Stars on the main sequence, and novae, typically convert hydrogen into helium. The heavier elements were formed during supernovae explosions.
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