Periodic Table as Arranged by Mendelejeff ... of the properties of these elements and of their compounds shows that iodine belongs to the chlorine family, while tellurium closely resembles sulphur ...

The content in chlorine does not exceed ... that indicated by Mendeleef for ekabor, an element the existence of which was predicated by the periodic law. In 1794, Gadolin had separated from ...

The Laboratory in Blue Prince is home to two puzzles: the periodic table puzzle and the machine puzzle. Both puzzles are ...

Heavy metal first hit the airwaves back in the 1970s and 80s, but many of the elders of metal continue to rock, shred, thrash ...

118 Elements and Their Symbols and Atomic Numbers:The Periodic Table is a well-organized chart that contains all 118 known ...

So why do so many life-forms breathe oxygen? There are probably thousands of kinds of metabolisms, or chemical processes that maintain life, said Donald Canfield, a geobiologist at the University of ...

Particle-accelerator study focuses on the r-process thought to be responsible for forming elements heavier than iron ...

Chemical biology is the study of the chemicals and chemical reactions involved in biological processes, incorporating the disciplines of bioorganic chemistry, biochemistry, cell biology and pharma ...

The major use of chlorine dioxide is as a bleach in a number of industries: in cleaning and de-tanning of leather, and as a bleaching agent for wood pulp, fats and oils, cellulose, flour, textiles, ...

Generally, Yao and his team are called on to help with chemical leaks once or twice a month. These range from the inert but potentially hazardous leaks, such as liquid nitrogen tank failures, to ...