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doit_the_clown doit_the_clown
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7 years ago
The sequence of thermonuclear fusion processes inside massive stars can transform elements such as carbon, oxygen, etc., into heavier elements AND generate excess energy until iron has been produced. Why is it not possible for fusion reactions to release energy from iron nuclei?
A)   The electrostatic charge of iron nuclei is so great that other nuclei cannot approach closely enough to react with them.
B)   Iron has the largest nucleus of all elements, and fusing other nuclei with iron actually reduces the size of the nucleus.
C)   Iron is the heaviest naturally occurring element.
D)   The protons and neutrons in an iron nucleus are so tightly bound together that fusing other nuclei with iron absorbs energy rather than releasing it.
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Discovering the Universe

Discovering the Universe


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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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discovererdiscoverer
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doit_the_clown Author
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7 years ago
Good timing, thanks!
Morgan-C
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Yesterday
Thanks
oscar520000
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2 hours ago
This site is awesome
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