The formula of an ionic compound can be deduced from the formulae of its ions. Remember that for the metal elements in groups 1, 2, and 3 the charge on the ion can be deduced by how many outer shell ...

Most chemists would describe titanium dioxide as an ionic compound composed of Ti 4+ and two O 2–. Not so, suggests a theoretical analysis: TiO 2 is better described with the charge states Ti 3+ and O ...

(Nanowerk News) Electrochemical double layer capacitors (EDLCs), also known as super capacitors, store energy by reversible electrostatic attraction of electrolyte ions onto high surface area carbon ...