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What nuclear process involves heavy nuclei splitting into lighter nuclei?

Question

What nuclear process involves heavy nuclei splitting into lighter nuclei?

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Solution

The nuclear process that involves heavy nuclei splitting into lighter nuclei is called nuclear fission. Here are the steps of this process:

  1. Initiation: A heavy nucleus, such as uranium-235 or plutonium-239, absorbs a neutron and becomes unstable.

  2. Nuclear Fission: The unstable nucleus splits into two smaller nuclei, releasing a large amount of energy in the process. This is the main step where the heavy nucleus splits.

  3. Neutron Emission: Two or three neutrons are usually emitted during this process. These neutrons can then be absorbed by other heavy nuclei, causing them to become unstable and split, creating a chain reaction.

  4. Energy Release: The energy released in nuclear fission is used to heat water to produce steam, which then drives a turbine to generate electricity in a nuclear power plant.

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Question 131 ptsWhich occurs in a fusion reaction between two atoms?Group of answer choicesEnergy is absorbed as a less stable element forms.A new element is formed and energy is released.Energy is converted into mass and forms a heavier element.The nuclei of the atoms are split apart and energy is released. Flag question: Question 14Question 141 ptsIn what way are nuclear fission and nuclear fusion similar?Group of answer choicesBoth processes involve the decay of nuclei of atoms.Both processes result in formation of one or more new elements.Both processes are currently used to generate electrical energy.Both processes occur naturally inside the core of a star.

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