Disproziya izotoplari - Isotopes of dysprosium

Ning asosiy izotoplari disprosium  (66Dy)
IzotopChirish
mo'llikyarim hayot (t1/2)rejimimahsulot
154Dysin3.0×106 ya150Gd
156Dy0.056%barqaror
158Dy0.095%barqaror
160Dy2.329%barqaror
161Dy18.889%barqaror
162Dy25.475%barqaror
163Dy24.896%barqaror
164Dy28.260%barqaror
Standart atom og'irligi Ar, standart(Dy)

Tabiiyki disprosium (66Dy) 7 ta barqarordan iborat izotoplar, 156Dy, 158Dy, 160Dy, 161Dy, 162Dy, 163Dy va 164Dy, bilan 164Dy eng ko'p (28,18%) tabiiy mo'llik ). Yigirma to'qqiz radioizotoplar eng barqaror mavjudot bilan tavsiflangan 154Dy bilan yarim hayot 3,0 million yil, 159Dy ning yarim yemirilish davri 144,4 kun va 166Dy ning yarimparchalanish vaqti 81,6 soat. Qolganlarning hammasi radioaktiv izotoplarning yarim umrlari 10 soatdan kam, va ularning ko'pchiligida 30 sekunddan kam bo'lgan yarim umrlar mavjud. Ushbu element 12 ga ega meta davlatlar, eng barqaror mavjudot bilan 165mDy (yarim umr 1,257 daqiqa), 147mDy (yarim umr 55,7 soniya) va 145mDy (yarim umr 13,6 soniya).

Birlamchi parchalanish rejimi eng barqaror izotopdan oldin, 164Dy, shunday elektronni tortib olish va undan keyin asosiy rejim beta-parchalanish. Birlamchi parchalanadigan mahsulotlar oldin 164Dy bor terbium izotoplar va undan keyingi asosiy mahsulotlar holmiy izotoplar.

164Dy nazariy jihatdan eng og'ir barqaror nuklid, barchasi og'irroq beta-barqaror nuklidlar o'tish nazariyasi mavjud alfa yemirilishi.[iqtibos kerak ]

Izotoplar ro'yxati

Nuklid
[n 1]
ZNIzotopik massa (Da )
[n 2][n 3]
Yarim hayot
[n 4]
Chirish
rejimi

[n 5]
Qizim
izotop

[n 6]
Spin va
tenglik
[n 7][n 4]
Tabiiy mo'llik (mol qismi)
Qo'zg'alish energiyasiOddiy nisbatTurlanish oralig'i
138Dy6672137.96249(64)#200 # ms0+
139Dy6673138.95954(54)#600 (200) ms7/2+#
140Dy6674139.95401(54)#700 # msβ+140Tb0+
140mDy2166,1 (5) keV7.0 (5) ms(8−)
141Dy6675140.95135(32)#0,9 (2) sβ+141Tb(9/2−)
β+, p (kamdan-kam)140Gd
142Dy6676141.94637(39)#2.3 (3) sβ+ (99.94%)142Tb0+
β+, p (.06%)141Gd
143Dy6677142.94383(21)#5.6 (10) sβ+143Tb(1/2+)
β+, p (kamdan-kam)142Gd
143mDy310,7 (6) keV3,0 (3) s(11/2−)
144Dy6678143.93925(3)9.1 (4) sβ+144Tb0+
β+, p (kamdan-kam)143Gd
145Dy6679144.93743(5)9,5 (10) sβ+145Tb(1/2+)
β+, p (kamdan-kam)144Gd
145mDy118,2 (2) keV14.1 (7) sβ+145Tb(11/2−)
146Dy6680145.932845(29)33.2 (7) sβ+146Tb0+
146mDy2935,7 (6) keV150 (20) milodiyIT146Dy(10+)#
147Dy6681146.931092(21)40 (10) sβ+ (99.95%)147Tb1/2+
β+, p (.05%)146Tb
147m1Dy750,5 (4) keV55 (1) sβ+ (65%)147Tb11/2−
IT (35%)147Dy
147m2Dy3407,2 (8) keV0,40 (1) ms(27/2−)
148Dy6682147.927150(11)3.3 (2) minβ+148Tb0+
149Dy6683148.927305(9)4.20 (14) minβ+149Tb7/2(−)
149mDy2661,1 (4) keV490 (15) milIT (99,3%)149Dy(27/2−)
β+ (.7%)149Tb
150Dy6684149.925585(5)7.17 (5) minβ+ (64%)150Tb0+
a (36%)146Gd
151Dy6685150.926185(4)17.9 (3) minβ+ (94.4%)151Tb7/2(−)
a (5,6%)147Gd
152Dy6686151.924718(6)2.38 (2) soatEC (99.9%)152Tb0+
a (.1%)148Gd
153Dy6687152.925765(5)6.4 (1) soatβ+ (99.99%)153Tb7/2(−)
a (.00939%)149Gd
154Dy6688153.924424(8)3.0(15)×106 ya150Gd0+
β+β+ (kamdan-kam)154Gd
155Dy6689154.925754(13)9,9 (2) soatβ+155Tb3/2−
155mDy234,33 (3) keV6 (1) ms11/2−
156Dy6690155.924283(7)Kuzatuv jihatidan barqaror[n 8]0+5.6(3)×10−4
157Dy6691156.925466(7)8.14 (4) soatβ+157Tb3/2−
157m1Dy161,99 (3) keV1.3 (2) ms9/2+
157m2Dy199,38 (7) keV21,6 (16) milIT157Dy11/2−
158Dy6692157.924409(4)Kuzatuv jihatidan barqaror[n 9]0+9.5(3)×10−4
159Dy6693158.9257392(29)144.4 (2) dEC159Tb3/2−
159mDy352,77 (14) keV122 (3) ms11/2−
160Dy6694159.9251975(27)Kuzatuv jihatidan barqaror[n 10]0+0.02329(18)
161Dy6695160.9269334(27)Kuzatuv jihatidan barqaror[n 11]5/2+0.18889(42)
162Dy6696161.9267984(27)Kuzatuv jihatidan barqaror[n 12]0+0.25475(36)
163Dy6697162.9287312(27)Barqaror[n 13][2]5/2−0.24896(42)
164Dy6698163.9291748(27)Barqaror[n 14]0+0.28260(54)
165Dy6699164.9317033(27)2.334 (1) soatβ165Xo7/2+
165mDy108.160 (3) keV1.257 (6) minIT (97,76%)165Dy1/2−
β (2.24%)165Xo
166Dy66100165.9328067(28)81,6 (1) soatβ166Xo0+
167Dy66101166.93566(6)6.20 (8) minβ167Xo(1/2−)
168Dy66102167.93713(15)8.7 (3) minβ168Xo0+
169Dy66103168.94031(32)39 (8) sβ169Xo(5/2−)
170Dy66104169.94239(21)#30 # sβ170Xo0+
171Dy66105170.94620(32)#6 # sβ171Xo7/2−#
172Dy66106171.94876(43)#3 # sβ172Xo0+
173Dy66107172.95300(54)#2 # sβ173Xo9/2+#
  1. ^ mDy - hayajonlangan yadro izomeri.
  2. ^ () - noaniqlik (1σ) tegishli oxirgi raqamlardan keyin qavs ichida ixcham shaklda berilgan.
  3. ^ # - Atom massasi # bilan belgilangan: qiymat va noaniqlik faqat eksperimental ma'lumotlardan emas, balki kamida qisman Mass Surface tendentsiyalaridan kelib chiqadi (TMS ).
  4. ^ a b # - # bilan belgilangan qiymatlar faqat eksperimental ma'lumotlardan kelib chiqmaydi, lekin hech bo'lmaganda qisman qo'shni nuklidlarning tendentsiyalaridan kelib chiqadi (TNN ).
  5. ^ Parchalanish usullari:
    EC:Elektronni tortib olish
    IT:Izomerik o'tish


    p:Proton emissiyasi
  6. ^ Qalin belgi qizi sifatida - qizi mahsulot barqaror.
  7. ^ () spin qiymati - zaif tayinlash argumentlari bilan spinni bildiradi.
  8. ^ A parchalanishiga olib kelishiga ishonilgan 152Gd yoki β+β+ yemirilish 156Gd bilan yarim hayot 10 yoshdan oshgan18 yil
  9. ^ A parchalanishiga olib kelishiga ishonilgan 154Gd yoki β+β+ yemirilish 158Gd
  10. ^ A parchalanishiga olib kelishiga ishonilgan 156Gd
  11. ^ A parchalanishiga olib kelishiga ishonilgan 157Gd
  12. ^ A parchalanishiga olib kelishiga ishonilgan 158Gd
  13. ^ O'tkazilishi mumkin bog'langan holat β yemirilish ga 163To'liq bo'lganda 47 kunlik yarim umr ionlashgan
  14. ^ Nazariy jihatdan eng og'ir nuklid
  • Bilan bog'liq bo'lgan geologik jihatdan istisno namunalar mavjud Oklo tabiiy yadroviy bo'linish reaktori, unda izotopik tarkibi xabar berilgan doiradan tashqarida joylashgan. Atom massasidagi noaniqlik ushbu namunalar uchun belgilangan qiymatdan oshib ketishi mumkin.

Disprozium-165

Radiofarmatsevtik.

Adabiyotlar

  1. ^ Meyja, Yuris; va boshq. (2016). "Elementlarning atom og'irliklari 2013 (IUPAC texnik hisoboti)". Sof va amaliy kimyo. 88 (3): 265–91. doi:10.1515 / pac-2015-0305.
  2. ^ M. Jung; va boshq. (1992-10-12). "Bog'langan holatni birinchi kuzatish β yemirilish ". Jismoniy tekshiruv xatlari. 69 (15): 2164–2167. Bibcode:1992PhRvL..69.2164J. doi:10.1103 / PhysRevLett.69.2164. PMID  10046415.