Chapter 8, Problem 140RQ

Interpretation Introduction

Interpretation:

The wavelength of light which is absorbed by a hydrogen molecule, causing the molecule to split into the ions, ${\text{H}}^{+}$ and ${\text{H}}^{-}$ is to be determined.

Concept Introduction:

An ionic compound is a compound in which positive ions and negative ions are held together by electrostatic forces.

Electron affinity $\left(\text{EA}\right)$ is associated with a change in potential energy when an electron is added to a gaseous atom or ion in its ground state.

The energy required in order to remove an electron from the outermost shell of an isolated gaseous atom, ion, or molecule in its ground state is known as ionization energy $\left(\text{IE}\right)$.

The lattice energy (LE) is the energy that is liberated when ions link together to form a compound.