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Alchemical Symbols is a Unicode block containing symbols for chemicals and substances used in ancient and medieval alchemy texts. Many of the symbols are duplicates or redundant with previous characters.
A table of alchemical symbols from Basil Valentine's The Last Will and Testament, 1670 Alchemical symbols before Lavoisier Alchemical symbols were used to denote chemical elements and compounds, as well as alchemical apparatus and processes, until the 18th century.
118 chemical elements have been identified and named officially by IUPAC.A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).
1 Control-C has typically been used as a "break" or "interrupt" key. 2 Control-D has been used to signal "end of file" for text typed in at the terminal on Unix / Linux systems. Windows, DOS, and older minicomputers used Control-Z for this purpose. 3 Control-G is an artifact of the days when teletypes were in use. Important messages could be ...
The absorption rate constant K a is a value used in pharmacokinetics to describe the rate at which a drug enters into the system. It is expressed in units of time −1. [1] The K a is related to the absorption half-life (t 1/2a) per the following equation: K a = ln(2) / t 1/2a. [1] K a values can typically only be found in research articles. [2]
List of chemical elements — with basic properties like standard atomic weight, m.p., b.p., abundance; Abundance of the chemical elements; Abundances of the elements (data page) — Earth's crust, sea water, Sun and Solar System
The binding constant, or affinity constant/association constant, is a special case of the equilibrium constant K, [1] and is the inverse of the dissociation constant. [2] It is associated with the binding and unbinding reaction of receptor (R) and ligand (L) molecules, which is formalized as:
13709-38-1 F 3 Li 3: trilithium trifluoride: 110682-19-4 F 3 Lu: lutetium trifluoride: 13760-81-1 F 3 Mn: manganese trifluoride: 7783-53-1 F 3 Mo: molybdenum trifluoride: 20193-58-2 F 3 MoO: molybdenum trifluoride oxide: 22529-29-9 F 3 MoS: molybdenum trifluoride sulfide: 67374-76-9 F 3 N: nitrogen trifluoride: 7783-54-2 F 3 NO: nitrogen ...