Commutator (electric) A commutator is a moving part of a rotary electrical switch in certain types of electric motors and electrical generators that periodically reverses the current direction between the rotor and the external circuit. It consists of a cylinder composed of multiple metal contact segments on the rotating armature of the machine.
The word equation that would represent the formation of lithium oxide from lithium metal and oxygen is: lithium + oxygen to lithium oxide. In chemical symbols, the balanced chemical equation is expressed as: Li + O2 = Li2O.
The Ionic Bond formation for Lithium Oxide. Lithium is in group 1 of the periodic table. A lithium atom will lose 1 electron to form a stable 1+ ion. Oxygen is in group 6 of the periodic table. An oxygen atom will gain 2 electrons to form a stable 2- ion. In this example the electrons are shown as dots and crosses.Two lithium atoms will each give one electron to the oxygen atom.The atoms become ions.n oxygen atom will gain 2 electrons to form a stable 2- ion. In this example the electrons are shown as dots and crosses. Two lithium atoms will each give one electron to the oxygen atom. The atoms become ions.