အဲ့သတဲတ်တုဲင်း,  85At
ကအောဝ်ႏလုဲင်ႏဒါႏ ဂုဏ်သတ္တိဖုံႏ
အမဉ်ꩻ၊ သင်္ကေတအဲ့သတဲတ်တုဲင်း, At
အငေါဝ်းထန်ႏ/ˈæstətn/ or /ˈæstətɪn/
AS -tə-teen or AS -tə-tin
အယောင်ꩻunknown, probably metallic
ဒြတ်စင် အထဲ့ရော့ꩻ ထာꩻရှောင်ကို အဲ့သတဲတ်တုဲင်း
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)
 I 

At

Ts
ပိုလိုနီယမ်အဲ့သတဲတ်တုဲင်းရေဒွန်
အဲက်တမ် အမုဲင်ရဲန်ႏ (Z)85
အဗူႏဘလော့group 17 (halogens)
အထဲ့ရော့ꩻ ထာꩻရွောင်period  6
ဒြပ်စင် ကဏ္ဍ  metalloid , sometimes classified as a nonmetal, or a metal[][]
အှောန်ႏထော့ခါꩻ အဲက်တမ်မေက် အထှူႏခေန်ႏ (Ar)(210)
အီလဲက္ထရွန် ကဖျင်ထာꩻ[Xe] 4f14 5d10 6s2 6p5
အပီတထွိုင်ကို ကပါဒါႏ အီလဲက္ထရွန်2, 8, 18, 32, 18, 7
ပှိုင်းဝှို့တုမ်ႏ ယောင်ꩻဖဲ့ဂုဏ်သတ္တိဖုံႏ
ဖေ့စ်အခြုံးအတူႏ
အခြုံးခြီအီအလျား575 K ​(302 °C, ​576 °F)
အထီဗို့ꩻအီအလျား610 K ​(337 °C, ​639 °F)
အနဲန်းအတဉ်ႏ (အခန်ꩻအလျား ၊ လမ်းဟောင်းကိုအလျား)(At2) 6.35±0.15 g/cm3 (predicted)[]
မိုလာပေႏတန် (At2) 32.94 cm3/mol (predicted)[]
အတအှိုထန်ႏအလျား(At2) 54.39 kJ/mol[]
အတအှိုထီတေက်ꩻအာႏ
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 361 392 429 475 531 607
အဲက်တမ်မေက်ဂုဏ်ႏဖုံႏ
ထွာအောက်သုဲက် (အောက်သုဲက်ဒေးဆဉ်း) အထျꩻအအုံ−1, +1, +3, +5, +7[]
ဓာတ်ငင်ႏအီလက်ထရွန် Pauling scale: 2.2
အာႏတောင်ႏတာႏမာꩻထွာအုဲင်းယွန်း1st: 899.003 kJ/mol[]
ကိုဗေးလဲန့်ဒွါႏအကဲန်တကှို့ꩻ 150 pm
ဗန်ဒါဝေါ့သ် ဒွါႏအကဲန်တကှို့ꩻ202 pm
Miscellanea
ကမာꩻထွာခါꩻထာꩻကြုံးface-centered cubic (fcc)
Face-centered cubic crystal structure for အဲ့သတဲတ်တုဲင်း

(predicted)[]
အလျားတွီကာႏထာꩻ1.7 W/(m·K)
CAS Number7440-68-8
ထွာလှောန်ခြောင်ꩻ
ကဖေႏအမဉ်ꩻသားafter Greek astatos (αστατος), meaning "unstable"
ကထုမ်ႏမော့ꩻသားDale R. Corson, Kenneth Ross MacKenzie, Emilio Segrè (1940)
အစှူဖြှိုးသွတ်ꩻ အဲ့သတဲတ်တုဲင်းသီး အုဲင်သိုတုပ်ဖုံႏ
iso NA သက်တန်ꩻတာကွို့ꩻ DM DE

( MeV)

DP
209At syn 5.41 h β+ 3.486 209Po
α 5.758 205Bi
210At syn 8.1 h β+ 3.981 210Po
α 5.632 206Bi
211At syn 7.21 h ε 0.786 211Po
α 5.983 207Bi
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အုံနောင်

These references will appear in the article, but this list appears only on this page.
  1. Corson, MacKenzie & Segrè 1940.
  2. ၂.၀ ၂.၁ "Condensed Astatine: Monatomic and Metallic" (2013). Physical Review Letters 111 (11): 116404-1–116404-5. doi:10.1103/PhysRevLett.111.116404. en:Bibcode2013PhRvL.111k6404H. 
  3. ၃.၀ ၃.၁ "Predicting the Properties of the 113–120 Transactinide Elements" (1981). The Journal of Physical Chemistry 85 (9): 1177–86. ACS Publications. doi:10.1021/j150609a021. Retrieved on 6 May 2013. 
  4. Glushko၊ V. P.; Medvedev၊ V. A.; Bergma၊ G. A. (1966)။ Termicheskie Konstanty Veshchestv (Russianဘာသာစကားဖြင့်)။ 1။ Nakua။ p. 65။CS1 maint: အသိအမှတ်မပြုသော ဘာသာစကား (link)
  5. Greenwood & Earnshaw 2002, p. 28.
  6. "Measurement of the First Ionization Potential of Astatine by Laser Ionization Spectroscopy" (2013). Nature Communications 4: 1–6. doi:10.1038/ncomms2819. PMID 23673620. PMC:3674244.