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chemeurope.com's Encyclopedia of Chemistry provides articles for 64,557 entries from chemistry, pharmaceutics and material sciences as well as related scientific disciplines.

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Hydrogen Hydrogen (), is the chemical element represented by the symbol H and an atomic number of 1. At standard temperature and pressure it is a colourless, odorless, nonmetal lic, tasteless, highly flammable diatomic gas (H2). Properties With an atomic mass of 1.00794 amu, hydrogen is th more

Francium

Francium Francium (), formerly known as eka-caesium and actinium K , is a chemical element that has the symbol Fr and atomic number 87. It has the lowest known electronegativity of all known elements, and is the second rarest naturally occurring element (after as more

Enzyme inhibitor

Enzyme inhibitor protease in a complex with the protease inhibitor ritonavir . The structure of the protease is shown by the red, blue and yellow ribbons. The inhibitor is shown as the smaller ball-and-stick structure near the centre. Created from PDB 1HXW . Enzyme inhibitors are molecule s that more

Joseph Priestley

Joseph Priestley (1794) Joseph Priestley (13 March 1733 (old style ) – February 6 , 1804 ) was an 18th-century British theologian , Dissenting clergyman , natural philosopher , educator, and political theorist who published over 150 works. He is usually credited with the discovery of oxygen more

Proteasome

Proteasome Proteasomes are large protein complex es inside all eukaryote s and archaea , as well as in some bacteria . In eukaryotes, they are located in the nucleus and the cytoplasm .Peters JM, Franke WW, Kleinschmidt JA. (1994) Distinct 19S and 20S subcomplexes of the 26S proteasome and their more

Chemical elements