Chapter 6, Problem 6.81SP

Interpretation Introduction

Interpretation:

Whether a cesium atom transfers an electron to a chlorine atom to form isolated ${\text{Cs}}^{+}\left(g\right)$ and ${\text{Cl}}^{-}\left(g\right)$ ions or not should be determined.

Concept introduction:

Ionization energy is amount of energy needed to eliminate electron from isolated, neutral gaseous atom. It is denoted by $E_{\text{i}}$. Energy needed to eliminate first electron from neutral atom is known as first ionization energy, represented by $E_{\text{i1}}$. Energy needed to eliminate electron from monoatomic cation is second ionization energy $\left(E_{\text{i2}}\right)$.

Change in energy when electron is added to neutral isolated atom of gas is called electron affinity. It is denoted by $E_{\text{ea}}$. Neutral atom becomes anion after addition of electron to it. More negative $E_{\text{ea}}$ indicates greater tendency to accept the electron and vice-versa.