Chapter 11, Problem 7RQ

Interpretation Introduction

Interpretation:

To remove a second electron in Lithium atom requires a larger amount of energy this has to be explained.

Concept Introduction:

Atomic radii:

  The atomic radius of an atom can be defined as the distance between the center of the nucleus and the outermost electron.  In the periodic table, across a period atomic radius is decreases and increases down a group.

Ionization energy:

The amount of energy required to remove an electron from the atom is known ionization energy.  If the removed electron is first then it will be first ionization energy, if the removed electron is second then it will be second ionization energy.

For example,

  $\text{Na}\text{+}\text{Ionization}\text{energy}\stackrel{}{\to }{\text{Na}}^{\text{+}}\text{+}\text{e}$