Why Are Higher Temperatures Necessary for Fusion of Helium Nuclei

question 22

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.

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