Chemical substance can be transmuted into another element through a nuclear reaction. This is so, because all of the atoms in a sample of an element have the same number of protons, though they may be different isotopes, with differing numbers of neutrons. As of 2012, there are 118 known elements, about 80 of which are stable – that is, they do not change by radioactive decay into other elements. Some elements can occur as more than a single chemical substance (allotropes). For instance, oxygen exists as both diatomic oxygen (O) and ozone (O). The majority of elements are classified as metals.
More Deadly Than the Male More Deadly Than the Male More Deadly Than The Male is a 1919 silent film comedy adventure produced by Famous Players-Lasky and released by Paramount Pictures. Robert G. Vignola directed and Ethel Clayton stars. As described in a film magazine, Helen O'Hara (Clayton), actress and manager, is in love with Richard Carlin (Coxen). Richard is a man of the world, more fond of roaming in foreign countries and exploring other lands rather than enjoying the comforts of city or country life. Helen decides to change his habits and make of him a useful citizen. With this purpose, she stages a