ဘိုရွန်,  5B
boron (β-rhombohedral)[]
ကအောဝ်ႏလုဲင်ႏဒါႏ ဂုဏ်သတ္တိဖုံႏ
အမဉ်ꩻ၊ သင်္ကေတဘိုရွန်, B
အငေါဝ်းထန်ႏ/ˈbɔːrɒn/
အော်လိုထရိုဖီα-, β-rhombohedral, β-tetragonal (and Allotropes of boron)
အယောင်ꩻညိုႏဖြေင်း
ဒြတ်စင် အထဲ့ရော့ꩻ ထာꩻရှောင်ကို ဘိုရွန်
Element 1: Hydrogen (H), Other non-metal
Element 2: Helium (He), Noble gas
Element 3: Lithium (Li), Alkali metal
Element 4: Beryllium (Be), Alkaline earth metal
Element 5: Boron (B), Metalloid
Element 6: Carbon (C), Other non-metal
Element 7: Nitrogen (N), Other non-metal
Element 8: Oxygen (O), Other non-metal
Element 9: Fluorine (F), Halogen
Element 10: Neon (Ne), Noble gas
Element 11: Sodium (Na), Alkali metal
Element 12: Magnesium (Mg), Alkaline earth metal
Element 13: Aluminium (Al), Other metal
Element 14: Silicon (Si), Metalloid
Element 15: Phosphorus (P), Other non-metal
Element 16: Sulfur (S), Other non-metal
Element 17: Chlorine (Cl), Halogen
Element 18: Argon (Ar), Noble gas
Element 19: Potassium (K), Alkali metal
Element 20: Calcium (Ca), Alkaline earth metal
Element 21: Scandium (Sc), Transition metal
Element 22: Titanium (Ti), Transition metal
Element 23: Vanadium (V), Transition metal
Element 24: Chromium (Cr), Transition metal
Element 25: Manganese (Mn), Transition metal
Element 26: Iron (Fe), Transition metal
Element 27: Cobalt (Co), Transition metal
Element 28: Nickel (Ni), Transition metal
Element 29: Copper (Cu), Transition metal
Element 30: Zinc (Zn), Transition metal
Element 31: Gallium (Ga), Other metal
Element 32: Germanium (Ge), Metalloid
Element 33: Arsenic (As), Metalloid
Element 34: Selenium (Se), Other non-metal
Element 35: Bromine (Br), Halogen
Element 36: Krypton (Kr), Noble gas
Element 37: Rubidium (Rb), Alkali metal
Element 38: Strontium (Sr), Alkaline earth metal
Element 39: Yttrium (Y), Transition metal
Element 40: Zirconium (Zr), Transition metal
Element 41: Niobium (Nb), Transition metal
Element 42: Molybdenum (Mo), Transition metal
Element 43: Technetium (Tc), Transition metal
Element 44: Ruthenium (Ru), Transition metal
Element 45: Rhodium (Rh), Transition metal
Element 46: Palladium (Pd), Transition metal
Element 47: Silver (Ag), Transition metal
Element 48: Cadmium (Cd), Transition metal
Element 49: Indium (In), Other metal
Element 50: Tin (Sn), Other metal
Element 51: Antimony (Sb), Metalloid
Element 52: Tellurium (Te), Metalloid
Element 53: Iodine (I), Halogen
Element 54: Xenon (Xe), Noble gas
Element 55: Caesium (Cs), Alkali metal
Element 56: Barium (Ba), Alkaline earth metal
Element 57: Lanthanum (La), Lanthanoid
Element 58: Cerium (Ce), Lanthanoid
Element 59: Praseodymium (Pr), Lanthanoid
Element 60: Neodymium (Nd), Lanthanoid
Element 61: Promethium (Pm), Lanthanoid
Element 62: Samarium (Sm), Lanthanoid
Element 63: Europium (Eu), Lanthanoid
Element 64: Gadolinium (Gd), Lanthanoid
Element 65: Terbium (Tb), Lanthanoid
Element 66: Dysprosium (Dy), Lanthanoid
Element 67: Holmium (Ho), Lanthanoid
Element 68: Erbium (Er), Lanthanoid
Element 69: Thulium (Tm), Lanthanoid
Element 70: Ytterbium (Yb), Lanthanoid
Element 71: Lutetium (Lu), Lanthanoid
Element 72: Hafnium (Hf), Transition metal
Element 73: Tantalum (Ta), Transition metal
Element 74: Tungsten (W), Transition metal
Element 75: Rhenium (Re), Transition metal
Element 76: Osmium (Os), Transition metal
Element 77: Iridium (Ir), Transition metal
Element 78: Platinum (Pt), Transition metal
Element 79: Gold (Au), Transition metal
Element 80: Mercury (Hg), Transition metal
Element 81: Thallium (Tl), Other metal
Element 82: Lead (Pb), Other metal
Element 83: Bismuth (Bi), Other metal
Element 84: Polonium (Po), Metalloid
Element 85: Astatine (At), Halogen
Element 86: Radon (Rn), Noble gas
Element 87: Francium (Fr), Alkali metal
Element 88: Radium (Ra), Alkaline earth metal
Element 89: Actinium (Ac), Actinoid
Element 90: Thorium (Th), Actinoid
Element 91: Protactinium (Pa), Actinoid
Element 92: Uranium (U), Actinoid
Element 93: Neptunium (Np), Actinoid
Element 94: Plutonium (Pu), Actinoid
Element 95: Americium (Am), Actinoid
Element 96: Curium (Cm), Actinoid
Element 97: Berkelium (Bk), Actinoid
Element 98: Californium (Cf), Actinoid
Element 99: Einsteinium (Es), Actinoid
Element 100: Fermium (Fm), Actinoid
Element 101: Mendelevium (Md), Actinoid
Element 102: Nobelium (No), Actinoid
Element 103: Lawrencium (Lr), Actinoid
Element 104: Rutherfordium (Rf), Transition metal
Element 105: Dubnium (Db), Transition metal
Element 106: Seaborgium (Sg), Transition metal
Element 107: Bohrium (Bh), Transition metal
Element 108: Hassium (Hs), Transition metal
Element 109: Meitnerium (Mt), Transition metal
Element 110: Darmstadtium (Ds), Transition metal
Element 111: Roentgenium (Rg), Transition metal
Element 112: Copernicium (Cn), Transition metal
Element 113: Ununtrium (Uut)
Element 114: Ununquadium (Uuq)
Element 115: Ununpentium (Uup)
Element 116: Ununhexium (Uuh)
Element 117: Ununseptium (Uus)
Element 118: Ununoctium (Uuo)


B

Al
ဘယ်ရီလီယမ်ဘိုရွန်ကာဗွန်
အဲက်တမ် အမုဲင်ရဲန်ႏ (Z)5
အဗူႏဘလော့group 13 (boron group)
အထဲ့ရော့ꩻ ထာꩻရွောင်period  2
ဒြပ်စင် ကဏ္ဍ  metalloid
အှောန်ႏထော့ခါꩻ အဲက်တမ်မေက် အထှူႏခေန်ႏ (Ar)10.81[] (10.806–10.821)[]
အီလဲက္ထရွန် ကဖျင်ထာꩻ[He] 2s2 2p1
အပီတထွိုင်ကို ကပါဒါႏ အီလဲက္ထရွန်2, 3
ပှိုင်းဝှို့တုမ်ႏ ယောင်ꩻဖဲ့ဂုဏ်သတ္တိဖုံႏ
ဖေ့စ်အခြုံးအတူႏ
အခြုံးခြီအီအလျား2349 K ​(2076 °C, ​3769 °F)
အထီဗို့ꩻအီအလျား4200 K ​(3927 °C, ​7101 °F)
အနဲန်းအတဉ်ႏ 2.08 g/cm3
ဖျှူးဆဉ်းအလျား50.2 kJ/mol
အတအှိုထန်ႏအလျား508 kJ/mol
မိုလာ အလျားအာႏရဲင်ꩻ11.087 J/(mol·K)
အတအှိုထီတေက်ꩻအာႏ
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 2348 2562 2822 3141 3545 4072
အဲက်တမ်မေက်ဂုဏ်ႏဖုံႏ
ထွာအောက်သုဲက် (အောက်သုဲက်ဒေးဆဉ်း) အထျꩻအအုံ3, 2, 1, −1, −5[][] ​(a mildly acidic oxide)
ဓာတ်ငင်ႏအီလက်ထရွန် Pauling scale: 2.04
အာႏတောင်ႏတာႏမာꩻထွာအုဲင်းယွန်း1st: 800.6 kJ/mol
2nd: 2427.1 kJ/mol
3rd: 3659.7 kJ/mol
(more)
အဲက်တမ်မေက် ဒွါႏအကဲန်တကှို့ꩻempirical: 90 pm
ကိုဗေးလဲန့်ဒွါႏအကဲန်တကှို့ꩻ 84±3 pm
ဗန်ဒါဝေါ့သ် ဒွါႏအကဲန်တကှို့ꩻ192 pm
Miscellanea
ကမာꩻထွာခါꩻထာꩻကြုံးrhombohedral
Rhombohedral crystal structure for ဘိုရွန်
အငေါဝ်းအမှိုင် 16,200 m/s (at 20 °C)
အလျားမာꩻတခြက်ထာꩻβ form: 5–7 µm/(m·K) (at 25 °C)[]
အလျားတွီကာႏထာꩻ27.4 W/(m·K)
တျာႏရဲးကမ်းထာꩻ~106 Ω·m (at 20 °C)
ပသီႏထှို့ꩻဓာတ်diamagnetic[]
ပသီႏထှို့ꩻ ကခှေါင်းအီဒါႏထာꩻ (χmol)−6.7·10−6 cm3/mol[]
Mohs hardness~9.5
CAS Number7440-42-8
ထွာလှောန်ခြောင်ꩻ
ကထုမ်ႏမော့ꩻသားJoseph Louis Gay-Lussac and Louis Jacques Thénard[] (30 June 1808)
ဖဖြှဲ့ꩻထန်ႏအရီးသွတ်ꩻလဲင်ႏHumphry Davy[၁၀] (9 July 1808)
အစှူဖြှိုးသွတ်ꩻ ဘိုရွန်သီး အုဲင်သိုတုပ်ဖုံႏ
iso NA သက်တန်ꩻတာကွို့ꩻ DM DE

( MeV)

DP
10B 20% is stable with 5 neutrons[၁၁]
11B 80% is stable with 6 neutrons[၁၁]
10B content may be as low as 19.1% and as high as 20.3% in natural samples. 11B is the remainder in such cases.[၁၂]
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These references will appear in the article, but this list appears only on this page.
  1. Van Setten et al. 2007, pp. 2460–1
  2. Conventional Atomic Weights 2013. Commission on Isotopic Abundances and Atomic Weights
  3. Standard Atomic Weights 2013. Commission on Isotopic Abundances and Atomic Weights
  4. "Infrared Emission Spectroscopy of BF and AIF" (1995). J. Molecular Spectroscopy 170. doi:10.1006/jmsp.1995.1058. en:Bibcode1995JMoSp.170...82Z. 
  5. တမ်းပလေက်:Cite article
  6. "Physical-Chemical Properties of beta-Rhombohedral Boron" (October 1973). High Temp. Sci. 5 (5): 349–57. 
  7. Lide, David R. (ed.) (2000)။ Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics (PDF)။ CRC press။ ISBN 0849304814CS1 maint: extra text: authors list (link)
  8. Weast၊ Robert (1984)။ CRC, Handbook of Chemistry and Physics။ Boca Raton, Florida: Chemical Rubber Company Publishing။ pp. E110။ ISBN 0-8493-0464-4
  9. "Sur la décomposition et la recomposition de l'acide boracique" (1808). Annales de chimie 68: 169–174. 
  10. Davy H (1809). "An account of some new analytical researches on the nature of certain bodies, particularly the alkalies, phosphorus, sulphur, carbonaceous matter, and the acids hitherto undecomposed: with some general observations on chemical theory". Philosophical Transactions of the Royal Society of London 99: 39–104. doi:10.1098/rstl.1809.0005. 
  11. ၁၁.၀ ၁၁.၁ Atomic Weights and Isotopic Compositions for All Elements။ National Institute of Standards and Technology။ 2008-09-21 ကို ထွားစဲစ်ချာထွူလဲဉ်း။
  12. Szegedi, S. (1990). "Determination of boron in glass by neutron transmission method". Journal of Radioanalytical and Nuclear Chemistry Letters 146 (3): 177. doi:10.1007/BF02165219.