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Template documentation This page uses the meta infobox {{ Infobox isotopes (meta) }} for the element isotopes infobox. This infobox contains the table of § Main isotopes , and the § Standard atomic weight .
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Boron (5 B) naturally occurs as isotopes 10 B and 11 B, the latter of which makes up about 80% of natural boron. There are 13 radioisotopes that have been discovered, with mass numbers from 7 to 21, all with short half-lives, the longest being that of 8 B, with a half-life of only 771.9(9) ms and 12 B with a half-life of 20.20(2) ms.
This similarity reflects the fact that B and N have eight valence electrons as does a pair of carbon atoms. In cubic boron nitride (tradename Borazon), boron and nitrogen atoms are tetrahedral, just like carbon in diamond. Cubic boron nitride, among other applications, is used as an abrasive, as its hardness is comparable with that of diamond ...
Van Setten et al. 2007, pp. 2460–1 "Standard Atomic Weights: Boron". CIAAW. 2009. Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K ...
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