Foundations of Life
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Questions and Answers

Which subatomic particles make up an atom?

  • Protons and electrons
  • Protons and neutrons
  • Neutrons and electrons
  • Protons, neutrons, and electrons (correct)

    • What forms the nucleus of an atom?

  • Neutrons and electrons
  • Protons and neutrons (correct)
  • Only protons
  • Protons and electrons

    • What is an element?

  • A substance that contains multiple types of atoms
  • A substance that cannot be decomposed into simpler substances by ordinary chemical processes (correct)
  • A substance that has a high atomic mass
  • A substance that can be decomposed into simpler substances by ordinary chemical processes

    • What defines the identity of an element?

    <p>The number of protons</p> Signup and view all the answers

    What is the atomic mass of an atom?

    <p>The number of protons plus the number of neutrons</p> Signup and view all the answers

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