The Element Iron, Having Atomic Number 26, Is the "Crossover

question 68

Multiple Choice

The element iron, having atomic number 26, is the "crossover point" between fusion and fission. Why?

• A) Because all elements heavier than iron are radioactive, implying that they will fission easier than they will fuse.
• B) Because for elements lighter than iron, fusion converts nuclear energy to non- nuclear energy, whereas for elements heavier than iron, fission converts nuclear energy to non- nuclear energy.
• C) Because for elements lighter than iron, fusion converts non- nuclear energy to nuclear energy, whereas for elements heavier than iron, fission converts non- nuclear energy to nuclear energy.
• D) Because neutrons will only split the elements that are heavier than iron.
• E) Because of the neutron balance that results from splitting a nucleus.

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