Ionic Bond

Chemical elements with low ionization energies, such as metals, tend to loose electrons and form cations (positive ions), while elements with high ionization energies, such as halogens and oxygen, tend to capture electrons, thus forming anions (negative ions). The resulting ions are attracted to ions with its opposite charge and form an ionic bond. This bond is energetically favourable since bonded ions have lower energy than free ions. Usually, substances with ionic bonds are soluble in water, have a high melting point and show electric conductivity when in aqueous solution, but not when in solid state.

Degree in Biochemistry

Group 15

Ana Patrícia Carvalho
Filipe Lima

Humberto Pereira

Vítor Martins