Formation of Ions
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Questions and Answers

What is required for an atom to form an ion?

  • Gain or lose a proton
  • Gain or lose a neutron
  • Gain or lose a positron
  • Gain or lose an electron (correct)

    • Which of the following statements is true about a neutral atom?

  • It has more protons than electrons
  • It has more electrons than protons
  • It has the same number of protons and electrons (correct)
  • It has no neutrons

    • Why does an atom become positively charged when it loses an electron?

  • It has more neutrons than protons
  • It has fewer protons than electrons
  • It has fewer electrons than protons (correct)
  • It has more protons than neutrons

    • What type of bond is formed between sodium (Na) and chlorine (Cl) in sodium chloride (NaCl)?

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

    How do ions become stable in a chemical reaction?

    <p>By bonding with oppositely charged atoms</p> Signup and view all the answers

    What is the term used for the electrons in the outermost energy shell that are involved in chemical reactions?

    <p>Valence electrons</p> Signup and view all the answers

    Which rule states that the maximum number of valence electrons in the outermost energy shell is 8?

    <p>Octet rule</p> Signup and view all the answers

    Which type of ion forms when an atom gains electrons and has an overall negative charge?

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

    What is the charge on a cation and why?

    <p>+1 charge because it has more protons than electrons</p> Signup and view all the answers

    How does an atom become stable as an anion?

    <p>By gaining electrons to fill the outer energy shell</p> Signup and view all the answers

    What is the general trend for metals and nonmetals in terms of gaining or losing electrons?

    <p>Metals tend to lose electrons, while nonmetals tend to gain electrons.</p> Signup and view all the answers

    How do metals achieve stability through electron loss?

    <p>By losing electrons from their outer energy shell.</p> Signup and view all the answers

    What is the charge of a nonmetal with 6 valence electrons after gaining the necessary electrons?

    <p>-2</p> Signup and view all the answers

    Why does a metal ion have a positive charge?

    <p>It loses valence electrons, leading to more protons than electrons.</p> Signup and view all the answers

    How does a nonmetal achieve stability through electron acceptance?

    <p>By gaining electrons to add to its outermost energy shell.</p> Signup and view all the answers

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