Physics in Nuclear Medicine - Origin of the Term Atom Quiz
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Questions and Answers

What is the origin of the term “atom”?

  • It comes from the Greek word for indivisible, because it was once thought that atoms were the smallest things in the universe and could not be divided. (correct)
  • It comes from the Arabic word for essence, because atoms are the fundamental components of all matter.
  • It comes from the Latin word for invisible, because atoms cannot be seen by the naked eye.
  • It comes from the Sanskrit word for eternal, because atoms are indestructible and immutable.

    • Which of the following statements is correct when referring to the atom?

  • The number of protons determines the atomic number and the number of electrons determines the atomic mass.
  • The number of protons and neutrons determines the atomic mass and the number of electrons determines the charge.
  • The nucleus contains protons and electrons, and the electrons orbit around the nucleus.
  • The nucleus contains protons and neutrons, and the electrons occupy shells around the nucleus. (correct)

    • What is the difference between an atom and an element?

  • An atom is a type of energy, while an element is a type of matter that has specific chemical and physical properties.
  • An atom is indivisible, while an element can be further divided into smaller particles.
  • An atom is a single particle of matter, while an element is a collection of atoms that have the same number of protons. (correct)
  • An atom is a fundamental component of all matter, while an element is a collection of atoms with different numbers of protons.

    • What is the name of the force that holds the nucleus together and the energy associated with this force?

    <p>The strong force and the binding energy</p> Signup and view all the answers

    Which of the following statements is true about the atomic, mass, and neutron number of an element?

    <p>The atomic number and the mass number are always the same for an element, while the neutron number can vary depending on the isotope.</p> Signup and view all the answers

    What is the name of the force that is carried by protons and neutrons and holds the nucleus together?

    <p>Strong force</p> Signup and view all the answers

    What is the name of the force that causes the protons to repel each other due to their positive charge?

    <p>Electrostatic repulsion</p> Signup and view all the answers

    What is the role of neutrons in stabilizing the nucleus?

    <p>They increase the strong force without increasing the electrostatic repulsion.</p> Signup and view all the answers

    What is the problem with a simple nucleus composed of two protons?

    <p>The strong force is not strong enough to overcome the electrostatic repulsion.</p> Signup and view all the answers

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