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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?

Influence it and decrease its tightness Signup and view all the answers

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

Gaining electrons Signup and view all the answers

What defines the atomic radius of an atom?

The size of the electron cloud Signup and view all the answers

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

It depends on whether it becomes a cation or anion Signup and view all the answers

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

Ionic radius Signup and view all the answers

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

Electron Signup and view all the answers

How are atoms with different numbers of subatomic particles characterized?

By their sizes Signup and view all the answers

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

Because of the differing number of protons in the ions Signup and view all the answers

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

It decreases the atomic radius of the atom Signup and view all the answers

What factor primarily influences an element's electronegativity?

Atomic radius Signup and view all the answers

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

Higher ionization energy leads to a lower tendency to lose electrons 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?

Ionic radius increases Signup and view all the answers