Atomic Models: Rutherford vs Bohr

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Questions and Answers

What is the component of an atom present in the centre?

  • Positrons
  • Electrons
  • Neutrons
  • Protons (correct)

What is responsible for the positive charge of the nucleus?

  • Positrons
  • Electrons
  • Protons (correct)
  • Neutrons

What balances the force of attraction of electrons towards the nucleus?

  • Centrifugal force (correct)
  • Gravitational force
  • Protons
  • Neutrons

In which portion of an atom are the electrons not drawn close to the nucleus?

<p>Extra nuclear portion (C)</p> Signup and view all the answers

What are the circular paths defined by electrons in an atom known as?

<p>Orbits or energy levels (C)</p> Signup and view all the answers

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Study Notes

Atomic Structure

  • The nucleus is at the centre of an atom.
  • Protons are the positively charged particles located in the nucleus
  • The force of repulsion between the protons within the nucleus is balanced by the strong nuclear force.
  • The electrons revolve around the nucleus in defined paths called orbits or electron shells.
  • Electrons are not drawn close to the nucleus in these orbits due to the constant motion of the electrons.

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