by the International Bureau of Weights and Measures; SI symbol: pm) or picometer (American spelling) is a unit of length in the International System of...

and confirmation of quantum theory. Note: All measurements given are in picometers (pm). For more recent data on covalent radii see Covalent radius. Just...

band. Roughly, X-rays have a wavelength ranging from 10 nanometers to 10 picometers, corresponding to frequencies in the range of 30 petahertz to 30 exahertz...

The following are examples of orders of magnitude for different lengths. To help compare different orders of magnitude, the following list describes various...

Structure of 3,5-dinitrobenzoyl chloride with selected bond distances (picometers) and bond angles shown in red....

of the same element. Atoms are extremely small, typically around 100 picometers across. A human hair is about a million carbon atoms wide. This is smaller...

a single atom Vw = 39.36 Å3, which corresponds to rw = 2.11 Å (≈ 200 picometers). This method may be extended to diatomic gases by approximating the molecule...

value fermi fm femtometer ångström Å 100 picometers micron μm 1 micrometer Norwegian/Swedish mil or myriameter 10,000 meters x unit xu 0.1 picometer...

organic compounds, the length of the C-O bond does not vary widely from 120 picometers. Inorganic carbonyls have shorter C-O distances: CO, 113; CO2, 116; and...

Metrical details for methyl benzoate, distances in picometers....

strata. 2−64 seconds is about 54 zeptoseconds (light would travel 16.26 picometers, or approximately 0.31 × Bohr radius), and 264 seconds is about 585 billion...

the elements, as published by J. C. Slater in 1964. The values are in picometers (pm or 1×10−12 m), with an accuracy of about 5 pm. The shade of the box...

Structure of (CH3)3S+. The C-S-C angles are 102° and C-S bond distance is 177 picometers....

reactive element. Fluorine atoms have a small covalent radius of around 60 picometers, similar to those of its period neighbors oxygen and neon. The bond energy...

all elements whose radii have been measured or calculated, at about 260 picometers. The German chemist Robert Bunsen and physicist Gustav Kirchhoff discovered...

a crystal lattice. Ionic radii are typically given in units of either picometers (pm) or angstroms (Å), with 1 Å = 100 pm. Typical values range from 31 pm...

lasers have quite narrow oscillation linewidths, less than 3 GHz (0.5 picometers), making them candidates for use in fluorescence suppressed Raman spectroscopy...

radius is 77 picometers, silicon's is 118 picometers, germanium's is 123 picometers, tin's is 141 picometers, and lead's is 175 picometers. Carbon has...

porphyrin ring, which bends instead into a dome with the Fe2+ ion about 55 picometers above it. In this configuration, the sixth coordination site reserved...

α-carbons of adjacent amino acids in a protein are about 3.8 ångströms (380 picometers) apart. The α-carbon is important for enol- and enolate-based carbonyl...

should be about 400 kJ/mol and its metallic radius approximately 170 picometers. With a relative atomic mass of around 445 u, it should be a very heavy...

Selected bond distances (picometers) and angles for phenyl azide....

of the largest monatomic anions. It is assigned a radius of around 206 picometers. For comparison, the lighter halides are considerably smaller: bromide...

bond radius of 275 picometers and a lattice energy of −3054 kJ/mol, while sodium chloride (NaCl) has a bond radius of 283 picometers and a lattice energy...

to X-ray crystallography, S=N=S+ is linear with S-N distances of 146 picometers. Dithionitronium hexafluoroarsenate is prepared from thiazyl chloride...

standard temperature and pressure: the radium–radium bond distance is 514.8 picometers. Radium has a density of 5.5 g/cm3, higher than that of barium, again...

(space group Pm3m, no. 221). The unit cell has an edge length of 335.2 picometers; the beta form is rhombohedral. The structure of polonium has been characterized...

aldehyde group is somewhat polar. The C=O bond length is about 120–122 picometers. Aldehydes have properties that are diverse and that depend on the remainder...

Structure of an asymmetrical flyover complex (C5H5)2Fe2[(CCF3)4CO]CO. The Fe-Fe bond length is 258.8 picometers....

is elongated. In Gomberg's dimer, one C-C bond is rather long at 159.7 picometers. It is this bond that reversibly and readily breaks at room temperature...