Atomic Structure Basics
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Questions and Answers

What is the outermost shell that determines atom properties called?

  • Nucleus shell
  • Electron shell
  • Valence shell (correct)
  • Energy shell

    • What is an ion defined as?

  • Atoms with an equal number of protons and electrons
  • Atoms with an unbalanced number of protons and neutrons
  • Atoms or groups of atoms with a positive or negative charge (correct)
  • Atoms with filled electron shells

    • How many electrons does helium have in its outermost shell?

  • 2 (correct)
  • 1
  • 8
  • 4

    • What makes an atom unstable?

    <p>An unfilled electron shell</p> Signup and view all the answers

    What are isotopes?

    <p>Different atoms of the same element with different number of neutrons</p> Signup and view all the answers

    Which type of bond involves the transfer of electrons between atoms?

    <p>Ionic bond</p> Signup and view all the answers

    What type of reaction involves the breakdown of large molecules into smaller ones?

    <p>Decomposition reaction</p> Signup and view all the answers

    Which element is involved in forming hydrogen bonds with other atoms?

    <p>Hydrogen</p> Signup and view all the answers

    In which type of reaction do 2 components bond to make a larger molecule?

    <p>Synthesis reaction</p> Signup and view all the answers

    What type of bond involves the sharing of electrons between atoms?

    <p>Polar covalent bond</p> Signup and view all the answers

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