Most economical cars 2017. With rising fuel costs, finding an economical car with good fuel economy is essential. The listing below shows the Top 30 new cars currently available in the UK in 2017 sorted by MPG and with details on MPG, CO2 g/km, Tax Band and the unique Next Green Car Rating. Please use the new car search to filter these results by Manufacturer, Vehicle Class, Fuel Type, Tax Band, Transmission and more.
Freebase(0.00 / 0 votes)Rate this definition: Oxyanion. An oxyanion or oxoanion is a chemical compound with the generic formula AxOyâ. Oxoanions are formed by a large majority of the chemical elements. The formulae of simple oxoanions are determined by the octet rule.
Definition. An anion is an atom or a molecule which is negatively charged, i.e. has more number of electrons than protons. A cation is an atom or a molecule which is positively charged, i.e. has more number of protons than electrons.Charge.n ion is an atom or group of atoms in which the number of electrons is not equal to the number of protons, giving it a net positive or negative electrical charge.