Nuclear Arrangements and Isotopes

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Questions and Answers

Which of the following best describes isotopes?

  • Atoms with the same atomic number but different atomic mass numbers
  • Atoms with the same atomic number and the same atomic mass number
  • Atoms with the same number of protons but different numbers of neutrons (correct)
  • Atoms with the same atomic mass number but different atomic numbers

What is an isobar?

  • Atoms with the same number of protons but different numbers of neutrons
  • Atoms with the same atomic number and the same atomic mass number
  • Atoms with the same atomic mass number but different atomic numbers
  • Atoms with the same atomic number but different atomic mass numbers (correct)

What is an isotone?

  • Atoms with the same atomic number but different atomic mass numbers
  • Atoms with the same number of protons but different numbers of neutrons
  • Atoms with the same atomic number and the same atomic mass number (correct)
  • Atoms with the same atomic mass number but different atomic numbers

What is an isomer?

<p>Atoms with the same atomic number and the same atomic mass number (C)</p> Signup and view all the answers

What is a molecule?

<p>Atoms of various elements combined together (B)</p> Signup and view all the answers

Which of the following best describes radioactivity?

<p>The emission of alpha particles, beta particles, and usually gamma rays (D)</p> Signup and view all the answers

What is a radioisotope?

<p>Atoms that undergo radioactive decay (A)</p> Signup and view all the answers

Which of the following is a primary source of naturally occurring radioisotopes?

<p>All of the above (D)</p> Signup and view all the answers

What is an alpha particle?

<p>A particle consisting of two protons and two neutrons bound together (B)</p> Signup and view all the answers

Which type of radioactive decay is a more violent process?

<p>Alpha emission (C)</p> Signup and view all the answers

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