Question

Explain the energy transfers when ionic bond are made, include ionization energy and electron affinity.

Answer 1

In ionic bonds, the metal is donor of electrons (loses electrons) and become a positively charged ion (cation) and nonmetal is acceptor of electrons (accepts those electrons) and become a negatively charged ion (anion).
Ionization energy of the metal (easy to remove valence electrons) is lower than nonmetal and electron affinity of the nonmetal is higher than metal.

Answer 2

Answer: The energy needed to remove one or more electrons from a neutral atom to form a positively charged ion is a physical property that influences the chemical behavior of the atom. By definition, the first ionization energy of an element is the energy needed to remove the outermost, or highest energy, electron from a neutral atom in the gas phase.
The process by which the first ionization energy of hydrogen is measured would be represented by the following equation.
H(g) -----> H+(g) + e- deltaHo = -1312.0 kJ/mol