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B - Boron - METALLOIDS
Boron, of symbol B, atomic mass 10.8 and atomic number 5, is the only element in its group which is not a metal. Boron in its solid black form is brittle and very hard. In its form The amorphous form boron is a brown-black powder. There is no simple body in the native state, it is found in the form of borax. It constitutes about 0.001% of the earth's crust. Boron is used in metallurgy, and in various detergent products, soaps, disinfectants ...
Synthetic
Radioactive
Liquid
Gaseous
Electronic configuration diagram
| Name | Boron |
| Number | 5 |
| Atomic | 10.812 |
| Symbol | B |
| Fusion | 2300 |
| Boiling | 2550 |
| Density | 2.34 |
| Period | 2 |
| Group | 13 |
| Discovery | 1808 Gay-Lussac |
| Abundance | 10 |
| Radius | 1.2 |
| Electronegativity | 2.04 |
| Ionization | 8.298 |
| Number of isotopes | 6 |
| Electronic configuration | [He] 2s2 2p1 |
| Oxidation states | 1,2,3 |
| Electron by energy level | 2,3 |
| Mineral | Hardness | Density | Formula |
| Adachiite | CaFe2+3Al6(Si5AlO18)(BO3)3(OH)3(OH) | ||
| Admontite | 2.00 / 3.00 | 1.82 | MgB6O10·7H2O |
| Aksaite | 2.50 / 2.50 | 1.99 | MgB6O7(OH)6·2H2O |
| Alfredstelznerite | Ca4B16O16(OH)24·19H2O | ||
| Aluminomagnesiohulsite | 6.00 / 6.00 | 3.84 | Mg2AlO2(BO3) |
| Ameghinite | 2.00 / 3.00 | 2.02 | NaB3O3(OH)4 |
| Ammonioborite | 1.77 | (NH4)3B15O20(OH)8·4H2O | |
| Aristarainite | 3.50 / 3.50 | 2.03 | Na2Mg[B6O8(OH)4]2·4H2O |
| Avogadrite | 2.62 | KBF4 | |
| Axinite-(Fe) | 6.50 / 7.00 | 3.27 | Ca4Fe2+2Al4[B2Si8O30](OH)2 |
| Axinite-(Mg) | 6.50 / 7.00 | 3.27 | Ca4Mg2Al4[B2Si8O30](OH)2 |
| Axinite-(Mn) | 6.50 / 7.00 | 3.27 | Ca4Mn2+2Al4[B2Si8O30](OH)2 |
| Azoproite | 5.50 / 5.50 | 3.63 | Mg2[(Ti,Mg),Fe3+]O2BO3 |
| Bakerite | 4.50 / 4.50 | 2.70 | Ca4B5(SiO4)3(O3(OH)5) |
| Bandylite | 2.50 / 2.50 | 2.81 | CuB(OH)4Cl |
| Barberiite | 1.00 / 1.00 | 1.89 | NH4BF4 |
| Béhierite | 7.00 / 7.50 | 7.81 | TaBO4 |
| Berborite | 3.00 / 3.00 | 2.20 | Be2BO3(OH)·H2O |
| Biringuccite | 2.32 | Na2B5O8(OH)·H2O | |
| Blatterite | 6.00 / 6.00 | 4.70 | Sb5+3Mn3+9Mn2+35(BO3)16O32 |
| Bobtraillite | 5.50 / 5.50 | 3.16 | (Na,Ca)13Sr11(Zr,Y,Nb)14Si42B6O132(OH)12·12H2O |
| Bonaccordite | 7.00 / 7.00 | 5.17 | Ni2Fe3+O2(BO3) |
| Boracite | 7.00 / 7.00 | 2.90 | Mg3B7O13Cl |
| Boralsilite | 3.06 | Al16B6O30(Si2O7) | |
| Borax | 2.00 / 2.50 | 1.70 | Na2B4O5(OH)4·8H2O |
| Borcarite | 4.00 / 4.00 | 2.77 | Ca4MgB4O6(CO3)2(OH)6 |
| Borocookeite | 3.00 / 3.00 | 2.62 | LiAl4(Si3B)O10(OH)8 |
| Boromullite | Al9BSi2O19 | ||
| Boromuscovite | 2.50 / 3.00 | 2.81 | KAl2(Si3B)O10(OH)2 |
| Bosiite | 7.00 / 7.00 | 3.26 | NaFe3+3(Al4Mg2)(Si6O18)(BO3)3(OH)3O |
| Braitschite-(Ce) | 2.90 | Ca6.15Na0.85Ce2[B6O7(OH)3(O,OH)3]4·H2O | |
| Brianroulstonite | 5.00 / 5.00 | 1.97 | Ca3B5O6(OH)7Cl2·8H2O |
| Britvinite | 3.00 / 3.00 | 5.51 | Pb14Mg9Si10O28(BO3)4(CO3)2F2(OH)12 |
| Buryatite | 2.50 / 2.50 | Ca3(Si,Fe3+,Al)SO4B(OH)4(OH,O)6·12H2O | |
| Byzantievite | 4.50 / 5.00 | 4.25 | Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4(PO4,SiO4)4(BO3)9O22[(OH),F]43·1.5H2O |
| Cahnite | 3.00 / 3.00 | 3.16 | Ca2B(AsO4)(OH)4 |
| Calciborite | 3.50 / 3.50 | 2.88 | CaB2O4 |
| Calcybeborosilite-(Y) | 5.00 / 5.50 | 3.00 | (Y,REE,Ca)2(B,Be)2(SiO4)2(OH,O)2 |
| Canavesite | 1.80 | Mg2(HBO3)(CO3)·5H2O | |
| Cappelenite-(Y) | 6.00 / 6.00 | 4.40 | BaY6B6Si3O24F2 |
| Capranicaite | 2.41 | KCaNaAl4B4Si2O18 | |
| Carboborite | 2.00 / 2.00 | 2.12 | Ca2Mg[B(OH)4]2(CO3)2·4H2O |
| Chambersite | 7.00 / 7.00 | 3.49 | Mn3B7O13Cl |
| Charlesite | 2.50 / 2.50 | 1.77 | Ca6Al2(SO4)2B(OH)4(OH,O)12·26H2O |
| Chelkarite | 1.00 | CaMgB2O4Cl2·7H2O | |
| Chestermanite | 6.00 / 6.00 | 3.72 | Mg2(Fe3+,Mg,Al,Sb5+)O2BO3 |
| Chromium-dravite | 7.00 / 7.50 | NaMg3Cr6(Si6O18)(BO3)3(OH)3OH | |
| Chromo-alumino-povondraite | 7.50 / 7.50 | 3.23 | NaCr3(Al4Mg2)(Si6O18)(BO3)3(OH)3O |
| Chubarovite | 2.00 / 2.00 | 2.72 | KZn2(BO3)Cl2 |
| Ciprianiite | Ca4(Th,REE)2Al(B4Si4O22)(OH)2 | ||
| Clinokurchatovite | 4.50 / 4.50 | 3.07 | CaMgB2O5 |
| Clinometaborite | 2.05 | HBO2 | |
| Colemanite | 4.50 / 4.50 | 2.42 | CaB3O4(OH)3·H2O |
| Congolite | 6.50 / 7.50 | 3.58 | Fe2+3B7O13Cl |
| Danburite | 7.00 / 7.00 | 2.97 | CaB2Si2O8 |
| Darrellhenryite | 7.00 / 7.00 | 3.04 | NaLiAl2Al6(BO3)3Si6O18(OH)3O |
| Datolite | 5.50 / 5.50 | 2.80 | CaB(SiO4)(OH) |
| Diomignite | Li2B4O7 | ||
| Dravite | 7.00 / 7.50 | 2.98 | NaMg3Al6(Si6O18)(BO3)3(OH)3OH |
| Dumortierite | 8.50 / 8.50 | 3.30 | Al6BSi3O18 |
| Ekaterinite | 1.00 / 1.00 | 2.44 | Ca2B4O7Cl2·2H2O |
| Elbaite | 7.50 / 7.50 | 2.90 | Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3OH |
| Ericaite | 7.00 / 7.50 | 3.22 | Fe2+3B7O13Cl |
| Ezcurrite | 3.00 / 3.50 | 2.05 | Na2B5O7(OH)3·2H2O |
| Fabianite | 6.00 / 6.00 | 2.77 | CaB3O5(OH) |
| Fedorovskite | 4.50 / 4.50 | 2.65 | Ca2Mg2B4O7(OH)6 |
| Ferruccite | 3.00 / 3.00 | 2.50 | NaBF4 |
| Feruvite | 7.00 / 7.00 | 3.21 | CaFe2+3(Al5Mg)(Si6O18)(BO3)3(OH)3OH |
| Fluoborite | 3.50 / 3.50 | 2.89 | Mg3(BO3)F3 |
| Fluor-buergerite | NaFe3+3Al6(Si6O18)(BO3)3O3F | ||
| Fluor-dravite | 7.00 / 7.00 | 3.12 | NaMg3Al6(Si6O18)(BO3)3(OH)3F |
| Fluor-elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F | ||
| Fluor-liddicoatite | 7.50 / 7.50 | 3.05 | Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F |
| Fluor-schorl | 7.00 / 7.00 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3F | |
| Fluor-tsilaisite | 7.00 / 7.00 | 3.13 | NaMn2+3Al6(Si6O18)(BO3)3(OH)3F |
| Fluor-uvite | 7.50 / 7.50 | 3.08 | CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F |
| Foitite | 7.00 / 7.00 | 3.17 | (Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OH |
| Folvikite | Sb5+Mn3+(Mg,Mn2+)10O8(BO3)4 | ||
| Fontarnauite | (Na,K)2(Sr,Ca)(SO4)[B5O8(OH)]·2H2O | ||
| Fredrikssonite | 6.00 / 6.00 | 3.84 | Mg2Mn3+O2(BO3) |
| Frolovite | 3.50 / 3.50 | 2.14 | Ca[B(OH)4]2 |
| Gadolinite-(Ce) | 6.50 / 7.00 | 4.20 | Fe2+Be2Ce2(SiO4)2O2 |
| Garrelsite | 6.00 / 6.00 | 3.00 | NaBa3B7Si2O16(OH)4 |
| Gaudefroyite | 6.00 / 6.00 | 3.35 | Ca4Mn3+3(BO3)3(CO3)O3 |
| Ginorite | 3.50 / 3.50 | 2.07 | Ca2B14O20(OH)6·5H2O |
| Gowerite | 3.00 / 3.00 | 2.00 | Ca[B5O8(OH)][B(OH)3]·3H2O |
| Grandidierite | 7.50 / 7.50 | 2.98 | MgAl3O2(BO3)SiO4 |
| Halurgite | 2.50 / 3.00 | 2.19 | Mg2[B4O5(OH)4]2·H2O |
| Hambergite | 7.50 / 7.50 | 2.37 | Be2BO3(OH) |
| Harkerite | 2.96 | Ca12Mg4Al(SiO4)4(BO3)3(CO3)5·H2O | |
| Heidornite | 4.00 / 5.00 | 2.75 | Na2Ca3B5O8(SO4)2(OH)2Cl |
| Hellandite-(Ce) | 5.50 / 6.00 | (Ca,REE)4Ce2Al(Be,Li)2-xB4Si4O22(OH)2 | |
| Hellandite-(Y) | 5.50 / 6.00 | 3.70 | (Ca,REE)4Y2Al(Be,Li)2-xB4Si4O22(OH)2 |
| Henmilite | 1.50 / 2.00 | 2.51 | Ca2Cu[B(OH)4]2(OH)4 |
| Hexahydroborite | 2.50 / 2.50 | 1.87 | Ca[B(OH)4]2·2H2O |
| Hilgardite | 5.00 / 5.00 | 2.69 | Ca2B5O9Cl·H2O |
| Holtite | 8.50 / 8.50 | 3.60 | (Ta0.60.4)Al6BSi3O18 |
| Homilite | 5.00 / 5.00 | 3.38 | Ca2Fe2+B2(SiO4)2O2 |
| Howlite | 2.50 / 3.50 | 2.58 | Ca2B5SiO9(OH)5 |
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