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Chapter 10: Problem 29

Tission was once referred to as "splitting the atom." Is this teminology correct?

Short Answer

Expert verified
Yes, the terminology is correct because fission involves splitting an atom's nucleus.

Step by step solution

01

Understanding Fission

Fission is a nuclear reaction in which the nucleus of an atom splits into two or more smaller nuclei, along with the release of energy. This process often involves heavy elements, such as Uranium or Plutonium.
02

Analyzing the Term 'Splitting the Atom'

The phrase 'splitting the atom' refers very directly to the action that occurs during fission. In fission, the nucleus of an atom is split, which is precisely what the phrase describes.
03

Evaluating the Accuracy of the Terminology

Given that fission involves the splitting of an atom's nucleus, referring to fission as 'splitting the atom' is a correct and accurate terminology.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Atomic Structure
Atoms are the basic building blocks of matter. They consist of three main components:
  • Protons - positively charged particles located in the nucleus.
  • Neutrons - neutral particles that also reside in the nucleus.
  • Electrons - negatively charged particles orbiting the nucleus.
The nucleus of an atom is incredibly dense, containing all of the protons and neutrons, which account for nearly all the atom's mass. Despite its size, it holds a powerful influence over the properties of the atom.
This dense central core plays a vital role in nuclear fission because it is the part that splits during the process. Understanding this structure is crucial for grasping how fission occurs.
Nuclear Reactions
Nuclear reactions involve changes in an atom's nucleus and often result in the transformation of elements. There are two main types of nuclear reactions:
  • Fission - the splitting of a heavy nucleus into two or more lighter nuclei, accompanied by the release of energy.
  • Fusion - the joining of two light nuclei to form a heavier one, which also releases energy.
Fission is particularly important as it powers nuclear reactors and atomic bombs.
In a typical fission reaction, a target nucleus captures a neutron, becomes unstable, and splits into smaller nuclei, while releasing additional neutrons and energy. This can initiate a chain reaction, especially if the emitted neutrons are captured by other nuclei, perpetuating the process.
Energy Release in Nuclear Reactions
The energy released in nuclear reactions, especially fission, arises from the conversion of mass into energy. This is described by Einstein's equation, \(E = mc^2\), where \(E\) is energy, \(m\) is the mass defect, and \(c\) is the speed of light.
During fission, the resulting smaller nuclei have a combined mass that is less than the original nucleus. This mass difference, or mass defect, is directly converted into energy.
  • This energy appears as heat and radiation, which can be harnessed for electricity generation in nuclear power plants.
  • In atomic bombs, rapid, uncontrolled fission releases massive energy explosively.
The efficiency and scale of energy release make nuclear reactions incredibly potent, which is why they are both a source of power and concern.

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Most popular questions from this chapter

The equation \(E=m c^{2}\) was developed by which scientist? Identify what each of the letters in the equation stands for.

After three half-lives have gone by, what fraction of a sample of a radioactive isotope remains?

What is ionizing radiation, and what problems can it cause?

During operation, breeder reactors make fissionable fuel from nonfissionable material. What is the fuel made, and what is the nonfissionable material used?

What subatomic particle is emitted when a nucleus fissions?
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