Ionic Radius Basics
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Questions and Answers

Why does the ionic radius vary unlike the atomic radius?

  • Due to the number of surrounding ions or atoms bonded to it (correct)
  • Because of the number of valence electrons
  • As a result of the ion's mass
  • Because of the ion's atomic number

How does an increase in spin affect the ionic radius?

  • Causes the electron cloud to become denser
  • Decreases the ionic radius by shrinking the electron cloud
  • Has no effect on the ionic radius
  • Increases the ionic radius by widening the electron cloud (correct)

What happens to an ion's ionic radius as it grows in positive charge?

  • Becomes equal to its atomic radius
  • Decreases (correct)
  • Increases
  • Remains constant

How do the charges of other ions or atomic nuclei affect the electron cloud around a central ion?

<p>Influence it and decrease its tightness (A)</p> Signup and view all the answers

What contributes to the increase in ionic radius with an increase in negative charge?

<p>Gaining electrons (C)</p> Signup and view all the answers

What defines the atomic radius of an atom?

<p>The size of the electron cloud (B)</p> Signup and view all the answers

How does an atom's radius change when it becomes an ion?

<p>It depends on whether it becomes a cation or anion (B)</p> Signup and view all the answers

What term describes the change in size of an atom when it gains or loses an outermost electron?

<p>Ionic radius (D)</p> Signup and view all the answers

Which subatomic particle causes a change in the charge of an atom when gained or lost?

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

How are atoms with different numbers of subatomic particles characterized?

<p>By their sizes (A)</p> Signup and view all the answers

In an isoelectronic series of ions, why do different ions have different ionic radii?

<p>Because of the differing number of protons in the ions (B)</p> Signup and view all the answers

How does increasing electronegativity affect the atomic radius of an atom?

<p>It decreases the atomic radius of the atom (B)</p> Signup and view all the answers

What factor primarily influences an element's electronegativity?

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

How does ionization energy relate to an atom's tendency to lose electrons?

<p>Higher ionization energy leads to a lower tendency to lose electrons (C)</p> Signup and view all the answers

What trend is observed in the ionic radius of atoms as you move down a group on the periodic table?

<p>Ionic radius increases (D)</p> Signup and view all the answers

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