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What is nuclear fission?​

Sagot :

Joeyvillar99idn

Answer:

In nuclear fission, atoms are split apart, which releases energy. All nuclear power plants use nuclear fission, and most nuclear power plants use uranium atoms. During nuclear fission, a neutron collides with a uranium atom and splits it, releasing a large amount of energy in the form of heat and radiation.

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Adadieeeidn

Nuclear fission is a nuclear reaction in which the nucleus of an atom splits into two or more smaller nuclei, along with the release of a significant amount of energy. This process is fundamental in both nuclear power generation and nuclear weapons.

Characteristics of Nuclear Fission

  • Energy Release - Nuclear fission releases a large amount of energy, primarily in the form of kinetic energy of the fission fragments and as electromagnetic radiation. This energy can be harnessed for electricity generation or explosive power.
  • Neutron Emission - The fission of a heavy nucleus typically releases two or three free neutrons. These neutrons can induce further fission reactions in a chain reaction, which is a key principle in both nuclear reactors and nuclear weapons.
  • Heavy Nuclei - Fission typically occurs with heavy nuclei, such as uranium-235 or plutonium-239. These isotopes are fissionable, meaning they can sustain a chain reaction when bombarded with neutrons.

Importance

  • Energy Production - Nuclear fission is the basis for nuclear power plants, which provide a significant portion of the world's electricity. It offers a low-carbon alternative to fossil fuels, contributing to efforts to mitigate climate change.
  • Nuclear Weapon - Fission is the fundamental process behind atomic bombs. The development and proliferation of nuclear weapons have profound implications for global security and international relations.
  • Scientific Research - Understanding fission helps advance nuclear physics and related scientific fields. Research into fission and related processes can lead to innovations in energy production, medical treatments (such as cancer radiotherapy), and other technologies.