The element with the most stable nucleus and smallest mass per particle is:
A)uranium.
B)argon.
C)helium.
D)hydrogen
E)iron.

Name: The element with the most stable nucleus and smallest mass per particle is: A)uranium. B)argon. C)helium. D)hydrogen E)iron.
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Question

Quizplus · Accepted Answer

Iron has the most stable nucleus and the smallest mass per nucleon, which is why nuclear fusion reactions in stars do not proceed beyond iron in a significant way without external energy input.

The Element with the Most Stable Nucleus and Smallest Mass