Multiple Choice
Why are higher temperatures necessary for fusion of helium nuclei than for hydrogen nuclei?
A) Helium is chemically inert.
B) Helium nuclei are heavier than hydrogen nuclei.
C) The positive charges on helium nuclei are greater than those on the hydrogen nuclei.
D) Because E = mc2 and helium nuclei are heavier than hydrogen nuclei.
E) The boiling point of helium is higher than that of hydrogen.
Correct Answer:
Verified
Correct Answer:
Verified
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