한국   대만   중국   일본 
????????? - ????????????? ?????????? ???????????

?????????

????????????? ???????????
????????????? ??
?????????   34 Se
?????? ?????????????
????? ??????? ?????????, Se
??????? / s ? ? l iː n i ? m /
si- LEE -nee-?m
????? black, red, and gray (not pictured) allotropes
??????????????????? ??? ?????????
Element 1: ဟိုက်ဒရိုဂျင် (H), Other non-metal
Element 2: ဟီလီယမ် (He), Noble gas
Element 3: လီသီယမ် (Li), Alkali metal
Element 4: ဘယ်ရီလီယမ် (Be), Alkaline earth metal
Element 5: ဘိုရွန် (B), Metalloid
Element 6: ကာဗွန် (C), Other non-metal
Element 7: နိုက်ထရိုဂျင် (N), Other non-metal
Element 8: အောက်ဆီဂျင် (O), Other non-metal
Element 9: ဖလိုရင်း (F), Halogen
Element 10: နီယွန် (Ne), Noble gas
Element 11: ဆိုဒီယမ် (Na), Alkali metal
Element 12: မဂ္ဂနီစီယမ် (Mg), Alkaline earth metal
Element 13: အလူမီနီယမ် (Al), Other metal
Element 14: ဆီလီကွန် (Si), Metalloid
Element 15: ဖော့စဖောရပ် (P), Other non-metal
Element 16: ဆာလဖာ (S), Other non-metal
Element 17: ကလိုရင်း (Cl), Halogen
Element 18: အာဂွန် (Ar), Noble gas
Element 19: ပိုတက်ဆီယမ် (K), Alkali metal
Element 20: ကယ်လဆီယမ် (Ca), Alkaline earth metal
Element 21: စကန္ဒီယမ် (Sc), Transition metal
Element 22: တိုင်‌တေနီယမ် (Ti), Transition metal
Element 23: ဗနေဒီယမ် (V), Transition metal
Element 24: ခရိုမီယမ် (Cr), Transition metal
Element 25: မက်ဂနိစ် (Mn), Transition metal
Element 26: သံ (သတ္တု) (Fe), Transition metal
Element 27: ကိုဘော့ (ဒြပ်စင်) (Co), Transition metal
Element 28: နီကယ် (Ni), Transition metal
Element 29: ကြေးနီ (Cu), Transition metal
Element 30: သွပ် (Zn), Transition metal
Element 31: ဂဲလီယမ် (Ga), Other metal
Element 32: ဂျာမေနီယမ် (Ge), Metalloid
Element 33: စိန်ဖြူ (As), Metalloid
Element 34: ဆီလီနီယမ် (Se), Other non-metal
Element 35: ဘရိုမင်း (Br), Halogen
Element 36: ကရစ်ပတွန် (Kr), Noble gas
Element 37: ရူဘီဒီယမ် (Rb), Alkali metal
Element 38: စထရွန်တီယမ် (Sr), Alkaline earth metal
Element 39: အိတ်တြီယမ် (Y), Transition metal
Element 40: ဇာကိုနီယမ် (Zr), Transition metal
Element 41: နိုင်အိုဘီယမ် (Nb), Transition metal
Element 42: မိုလိပ်ဒီနမ် (Mo), Transition metal
Element 43: တက္ကနက်တီယမ် (Tc), Transition metal
Element 44: ရက်သီနီယမ် (Ru), Transition metal
Element 45: ရိုဒီယမ် (Rh), Transition metal
Element 46: ပယ်လေဒီယမ် (Pd), Transition metal
Element 47: ငွေ (သတ္တု) (Ag), Transition metal
Element 48: ကတ်မီယမ် (Cd), Transition metal
Element 49: အိန္ဒီယမ် (In), Other metal
Element 50: သံဖြူ (Sn), Other metal
Element 51: ခနောက်စိမ်း (Sb), Metalloid
Element 52: တယ်လူရီယမ် (Te), Metalloid
Element 53: အိုင်အိုဒင်း (I), Halogen
Element 54: ဇီနွန် (Xe), Noble gas
Element 55: ဆယ်ဆီယမ် (Cs), Alkali metal
Element 56: ဘေရီယမ် (Ba), Alkaline earth metal
Element 57: လန်သနမ် (La), Lanthanoid
Element 58: ဆယ်ရီယမ် (Ce), Lanthanoid
Element 59: ပရာဆီယိုဒိုင်ယမ် (Pr), Lanthanoid
Element 60: နီယိုဒိုင်မီယမ် (Nd), Lanthanoid
Element 61: ပရိုမီသီယမ် (Pm), Lanthanoid
Element 62: ဆမ္မာရီယမ် (Sm), Lanthanoid
Element 63: ယူရိုပီယမ် (Eu), Lanthanoid
Element 64: ဂါဒိုလီနီယမ် (Gd), Lanthanoid
Element 65: တာဘီယမ် (Tb), Lanthanoid
Element 66: ဒိုင်စပရိုဆီယမ် (Dy), Lanthanoid
Element 67: ဟိုမီယမ် (Ho), Lanthanoid
Element 68: အာဘီယမ် (Er), Lanthanoid
Element 69: ကျူလီယမ် (Tm), Lanthanoid
Element 70: အိတ္တာဘီယမ် (Yb), Lanthanoid
Element 71: လူတက်သီယမ် (Lu), Lanthanoid
Element 72: ဟက်ဖ်နီယမ် (Hf), Transition metal
Element 73: တန်တလမ် (Ta), Transition metal
Element 74: တန်စတင် (W), Transition metal
Element 75: ရီနီယမ် (Re), Transition metal
Element 76: အော့စမီယမ် (Os), Transition metal
Element 77: အိုင်ရီဒီယမ် (Ir), Transition metal
Element 78: ရွှေဖြူ (Pt), Transition metal
Element 79: ရွှေ (Au), Transition metal
Element 80: ပြဒါး (Hg), Transition metal
Element 81: သယ်လီယမ် (Tl), Other metal
Element 82: ခဲ (သတ္တု) (Pb), Other metal
Element 83: ကြွပ် (Bi), Other metal
Element 84: ပိုလိုနီယမ် (Po), Metalloid
Element 85: အက်စ်တက်တိုင်း (At), Halogen
Element 86: ရေဒွန် (Rn), Noble gas
Element 87: ဖရန်စီယမ် (Fr), Alkali metal
Element 88: ရေဒီယမ် (Ra), Alkaline earth metal
Element 89: အက်တီနီယမ် (Ac), Actinoid
Element 90: သိုရီယမ် (Th), Actinoid
Element 91: ပရိုတက်တီနီယမ် (Pa), Actinoid
Element 92: ယူရေနီယမ် (U), Actinoid
Element 93: နပ်ကျူနီယမ် (Np), Actinoid
Element 94: ပလူတိုနီယမ် (Pu), Actinoid
Element 95: အမေရိစီယမ် (Am), Actinoid
Element 96: ကျူရီယမ် (Cm), Actinoid
Element 97: ဘာကီလီယမ် (Bk), Actinoid
Element 98: ကာလီဖိုနီယမ် (Cf), Actinoid
Element 99: အိုင်စ်တိုင်နီယမ် (Es), Actinoid
Element 100: ဖာမီယမ် (Fm), Actinoid
Element 101: မန်ဒယ်လီဗီယမ် (Md), Actinoid
Element 102: နိုဘယ်လီယမ် (No), Actinoid
Element 103: လော်ရန်စီယမ် (Lr), Actinoid
Element 104: ရူသာဖော်ဒီယမ် (Rf), Transition metal
Element 105: ဒပ်ဘ်နီယမ် (Db), Transition metal
Element 106: ဆီဘော်ဂျီယမ် (Sg), Transition metal
Element 107: ဘိုဟ်ရီယမ် (Bh), Transition metal
Element 108: ဟက်စ်စီယမ် (Hs), Transition metal
Element 109: မိုက်ဒ်နီရီယမ် (Mt), Transition metal
Element 110: ဒမ်စတဒ်တီယမ် (Ds), Transition metal
Element 111: ရွန့်ဂန္နီယမ် (Rg), Transition metal
Element 112: ကော့ပါနီဆီယမ် (Cn), Transition metal
Element 113: နီဟိုနီယမ် (Uut)
Element 114: ဖလရိုဗီယမ် (Uuq)
Element 115: မော်စကိုဗီယမ် (Uup)
Element 116: လီဗာမိုရီယမ် (Uuh)
Element 117: တန်နဆီး (Uus)
Element 118: အိုဂန်နက်ဆွန် (Uuo)
 S
↑
Se
↓
Te
????????? ← ????????? → ????????
?????? ???????? ( Z ) 34
?????? ? ????? group 16 (chalcogens)
??????????????????? period 4
??????? ????   polyatomic nonmetal , sometimes considered a metalloid
?? ????????? ?????????   (±) ( A r ) 78.971(8) [?]
?????????? ?????????? [ Ar ] 3d 10 4s 2 4p 4
????????????? ?????????????????? 2, 8, 18, 6
????????????????? ?????????????
????? ?????????
????????????? 494  K ​(221 °C, ​430 °F)
?????????? 958 K ​(685 °C, ​1265 °F)
??????????? (?????????????) gray: 4.81 g/cm 3
alpha: 4.39 g/cm 3
vitreous: 4.28 g/cm 3
3.99 g/cm 3
Critical point 1766 K, 27.2 MPa
???????????? gray: 6.69  kJ/mol
????????????? ??? 95.48 kJ/mol
????? ????????? 25.363 J/(mol·K)
????????????
P   (Pa) 1 10 100 1 k 10 k 100 k
at  T   (K) 500 552 617 704 813 958
????????? ???????????
?????????????????? ?????? 6 , 5, 4 , 3, 2 , 1, [?] ?1, ?2 ​(a strongly acidic oxide)
?????????? ??????????????? Pauling scale: 2.55
?????????????????????????? 1st: 941.0 kJ/mol
2nd: 2045 kJ/mol
3rd: 2973.7 kJ/mol
????????? ????????? empirical: 120  pm
??????????????????? 120±4 pm
??????????? ????????? 190 pm
Miscellanea
?????????? ??????????? ​ ????
Hexagonal crystal structure for ဆီလီနီယမ်
??????????????? 3350 m/s (at 20 °C)
??? ??????????? amorphous: 37 μm/(m·K) (at 25 °C)
???????????? amorphous: 0.519 W/(m·K)
??????????? diamagnetic [?]
??????? ?????????????? ( χ mol ) −25.0·10 ?6  cm 3 /mol (298 K) [?]
Young's modulus 10 GPa
Shear modulus 3.7 GPa
Bulk modulus 8.3 GPa
????????? ?????? 0.33
Mohs hardness 2.0
Brinell hardness 736 MPa
CAS Number 7782-49-2
??????????????
???????????? after Selene, Greek goddess of the moon
????????????????????? ??????????????????? ????? ???????? ????????????? ????? Johann Gottlieb Gahn (????)
????????????? ?????????? ????????????????
iso NA ?????????? DM DE ( MeV ) DP
72 Se syn 8.4 d ε ? 72 As
γ 0.046 ?
74 Se 0.86% is stable with 40 neutrons
75 Se syn 119.8 d ε ? 75 As
γ 0.264, 0.136,
0.279 		?
76 Se 9.23% is stable with 42 neutrons
77 Se 7.60% is stable with 43 neutrons
78 Se 23.69% is stable with 44 neutrons
79 Se trace 3.27×10 5  y β ? 0.151 79 Br
80 Se 49.80% is stable with 46 neutrons
82 Se 8.82% 1.08×10 20  y β ? β ? 2.995 82 Kr
???????????? |
| ???????

????????? ??? ????????????? ???????????????? ???? ????????????? ????????????? ?????????????????? ???????????? ????? ?????????????????? ???????????? ???? ???? ?????????? ???????????????? ?????????????? ??????????? ???????????????? ?????? ???????????? ?? ?????? ?????? ???????? ????? ???????? ?????????? ?????????? ???????????????? ??????? ?????? ???????????? ????????????????? ????????????? ???????? ?????????? ????????????????? ???????????? ?????????? ?????????? ?????????? ??????????? ???????????? ????????????????????? ?????????????? ?????????????? ???????????????????? ???????????????? ?????????????? ????????????? ???????????? ???????? ??????????????

???????????? ????????? ??????????? ???????????? ?????????????? ???????? ????????????????????????? ?????????????? ???????????? ????????????????? ???????????? ?????????????????????? ??????????????? ???????????????????????? ???? ??????????? ??????? ???????????????????????????????? ???????????? ?????????????? ???????? ????? ???????????????? ???????????? ???????????????? ????????????? ?????? ?????????? ?????????????? ?????? ???????? ???????????? ????????????????? ????? ??????? ????????????????????????????? ?????????????????????? ??????????????????????????????? ???????????????? ???????????????? ???????

???????????? ?????????????????? ?????????? ????????? ??????????????? ????????????? ????????????? ????? ????????????? ????????????? (?????????????)???? ????????? ???????????? ??????????????? ???????? ??? ????????????????? ?????????????????????????????? ???????? ????????????????????? ?????? ????? ???? ??????????????? ?????????? ??????????????? ???????? ????? ?????????????? ??????????????? ??????????????????? ?????? ??????????? ????????? ???????????????? ????????? ????????????????? ?????????? ??????? ????

?????????? ??????????????? ????? ???????? ????????? ????????? ???????????? ???????????? ????? ???????? ?????????????? ???? ?????????????????? ?????? ????????????????? ???????????????????? ???? ???????? ??????????? ?????????????????? ?????????? ????????????? ???????? ??????????? ???????????????? ????????????? ???????????????????? ??????????? ????? ????????? ?????????????????????????? ???????????????? ????? ???????????????????????? ?????????????? ????????????????????? ????????? ????????????????? ??????????????? ???? ???????????????????? ????????????????? ????????????????? ???????????? ??????????? ???????????? ???????? ??????????????? ???????????????????????????? ??????? ???? ?????????????? ?????? ???????????????? ??????????? ?????? ??????????????????????????????? ???????? ???????????? ????????? ???????????????????? ???????????? ????( ?????????????????????????) [?]

??????? [ ?????????? ]

  1. ↑ Standard Atomic Weights 2013 . Commission on Isotopic Abundances and Atomic Weights
  2. ↑ Greenwood? Norman N. ; Earnshaw? Alan (1997)? Chemistry of the Elements (2nd ed.)? Butterworth-Heinemann? ISBN   0-08-037941-9 ?
  3. ↑ Magnetic susceptibility of the elements and inorganic compounds , in Lide, D. R., ed. (2005)? CRC Handbook of Chemistry and Physics (86th ed.)? Boca Raton (FL): CRC Press? ISBN   0-8493-0486-5 ?
  4. ↑ Weast? Robert (1984)? CRC, Handbook of Chemistry and Physics ? Boca Raton, Florida: Chemical Rubber Company Publishing? pp. E110? ISBN   0-8493-0464-4 ?
  5. ↑ ???????????????????? ????(?)
???????????????????
H   He
Li Be   B C N O F Ne
Na Mg   Al Si P S Cl Ar
K Ca   Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr   Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Uus Uuo
?????????????? ???? ??????????? ????????? Lanthanides Actinides Transition metals Post-transition metals ?????????????? ???? Polyatomic nonmetals Diatomic nonmetals ??????????? ????
??????????????????
" https://my.wikipedia.org/w/index.php?title=?????????&oldid=704271 " ?? ??????