High Quality Content by WIKIPEDIA articles! In chemistry, transuranium elements (also known as transuranic elements) are the chemical elements with atomic numbers greater than 92 (the atomic number of uranium) None of these elements are stable; they decay radioactively into other elements Of the elements with atomic numbers 1 to 92, all but однщк four (technetium, promethium, astatine, and francium) occur in easily detectable quantities on earth, having stable, or very long half-life isotopes, or are created as common products of the decay of uranium.  Автор данной2010 г Мягкая обложка, 144 стр ISBN 6130358695.