Valence Levels and Stability Diagram of a Chlorine Atom
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Questions and Answers

What is the main reason for chlorine to prefer taking an electron?

  • To complete its valence level (correct)
  • To become more reactive
  • To increase its atomic number
  • To reduce its electronegativity

Why does sodium prefer to get rid of its single valence electron?

  • To increase its electronegativity
  • To become more stable
  • To complete its valence level (correct)
  • To form an ionic bond with chlorine

What determines whether an atom will share, take, or donate electrons?

  • Ionization energy
  • Atomic mass
  • Electronegativity (correct)
  • Atomic radius

Which of the following statements about atoms with incomplete valence levels is true?

<p>They are typically unstable (D)</p> Signup and view all the answers

How can atoms deal with an incomplete valence level apart from sharing electrons?

<p>By taking or donating electrons (C)</p> Signup and view all the answers

In the sodium-chlorine example, what happens when sodium gives its extra electron to chlorine?

<p>An ionic bond forms between them (A)</p> Signup and view all the answers

What makes sodium and chlorine 'perfect partners' for electron transfer?

<p>One wants to give an electron, the other wants to take one (D)</p> Signup and view all the answers

What happens to the outer shell of sodium when it gives its electron to chlorine?

<p>It disappears completely. (A)</p> Signup and view all the answers

What term is used for a positively charged ion?

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

Why is the bond formed between sodium and chlorine called an ionic bond?

<p>Resulting from the electrostatic attraction of opposite charges. (C)</p> Signup and view all the answers

What does an ionic bond form between?

<p>A cation and an anion. (B)</p> Signup and view all the answers

How does water affect the stability of ionic bonds in sodium chloride?

<p>Decreases the stability. (D)</p> Signup and view all the answers

What is the charge on a chlorine ion?

<p>-1 (B)</p> Signup and view all the answers

Why are ionic bonds considered stable?

<p>Because of strong electrostatic forces between ions. (C)</p> Signup and view all the answers

What is the term for a group of atoms that are held together by ionic bonds?

<p><em>Crystal</em> (C)</p> Signup and view all the answers

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