Chapter 2: Polymers and Fundamental Concepts of the Atom
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Questions and Answers

What is the polymer backbone?

  • The nucleus of an atom containing protons and neutrons
  • The long chain of bonded carbon atoms formed when monomers link together to form polymers (correct)
  • The number of protons in a particular atom
  • The arrangement of electrons around the nucleus in a solar system model

Which of the following depicts the atomic structure as a solar system and is outdated?

  • Polyethylene
  • Electrons depicted as clouds of negative charge surrounding the nucleus (correct)
  • Atomic number
  • Models showing how atoms are arranged in several polymers

What does the mass number of an atom represent?

  • The long chain of bonded carbon atoms formed when monomers link together to form polymers
  • The arrangement of electrons around the nucleus in a solar system model
  • Number of protons in a particular atom
  • Sum of the number of protons and number of neutrons in a nucleus (correct)

What are polymers made up of?

<p>Smaller molecules linked together in polymers (A)</p> Signup and view all the answers

What are atoms composed of?

<p>Nucleus containing protons and neutrons (D)</p> Signup and view all the answers

Which term identifies the number of protons in a particular atom?

<p>Atomic number (D)</p> Signup and view all the answers

What is the mass number of an atom?

<p>The number of protons and neutrons in the nucleus (C)</p> Signup and view all the answers

What is the charge of a cation?

<p>Net positive charge (A)</p> Signup and view all the answers

What does Coulomb’s law state?

<p>The force between ions is proportional to the distance squared (B)</p> Signup and view all the answers

What is the difference between an element and its ion?

<p>Different properties (C)</p> Signup and view all the answers

How are ionic compounds described?

<p>As having alternating layers of cations and anions (A)</p> Signup and view all the answers

What do chemical formulas describe?

<p>The elements and number of atoms of each element in a compound (B)</p> Signup and view all the answers

What is the charge of an anion?

<p>Net negative charge (D)</p> Signup and view all the answers

What determines the mass spectrometers can measure?

<p>The masses of atoms, isotopes, and molecules (A)</p> Signup and view all the answers

What do monatomic ions derive from?

<p>A single atom (A)</p> Signup and view all the answers

What do isotopic abundances describe?

<p>The relative amounts of each isotope (C)</p> Signup and view all the answers

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