𨧀的同位素

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𨧀同位素

圖表[编辑]

符號 Z(p N(n 同位素質量(u 半衰期 衰變
方式
[1][n 1]
衰變
產物
原子核
自旋
激發能量
255Db 105 150 255.10707(45)# 1.7(5) s α (~80%) 251Lr
SF (~20%) (various)
256Db 105 151 256.10789(26)# 1.9(4) s
[1.6(+5−3) s]
α (~64%) 252Lr
SF (~0.02%) (various)
β+ (~36%) 256Rf
257Db 105 152 257.10758(22)# 1.53(17) s
[1.50(+19−15) s]
α (>94%) 253Lr (9/2+)
SF (<6%) (various)
β+ (1%) 257Rf
257mDb 140(100)# keV 0.67(6) s α (>87%) 253Lr (1/2−)
SF (<13%) (various)
β+ (1#%) 257Rf
258Db 105 153 258.10929(33)# 4.5(4) s α (64%) 254Lr
β+ (36%) 258Rf
SF (<1%) (various)
258mDb[n 2] 60(100)# keV 1.9(5) s β+ 258Rf
IT (不常見) 258Db
259Db 105 154 259.10949(6) 0.51(16) s α 255Lr
260Db 105 155 260.1113(1)# 1.52(13) s α (>90.4%) 256Lr
SF (<9.6%) (various)
β+ (<2.5%) 260Rf
260mDb[n 2] 200(150)# keV 19 s
261Db 105 156 261.11192(12)# 4.5(1.1) s SF (73%) (various)
α (27%) 257Lr
262Db 105 157 262.11407(15)# 35(5) s SF (~67%) (various)
α (~30%) 258Lr
β+ (3#%) 262Rf
263Db 105 158 263.11499(18)# 29(9) s
[27(+10−7) s]
SF (~56%) (various)
α (~37%) 259Lr
β+ (~6.9%)[n 3] 263Rf
266Db[n 4] 105 161 266.12103(30)# 80(70) min SF (various)
ε 266Rf
267Db[n 5] 105 162 267.12247(44)# 4.6(3.7) h SF (various)
268Db[n 6] 105 163 268.12567(57)# 30.8(5.0) h SF (~100%) (various)
ε [n 7] 268Rf
270Db[n 8] 105 165 270.13136(64)# 1.1 (+1.5−0.4) h[2] SF (17%) (various)
α (83%) 266Lr

備註:畫上#號的數據代表沒有經過實驗的證明,只是理論推測而已,而用括號括起來的代表數據不確定性。

同位素列表
鑪的同位素 𨧀的同位素 𨭎的同位素

註釋[编辑]

  1. ^ Abbreviations:
    EC: Electron capture
    IT: Isomeric transition
    SF: Spontaneous fission
  2. ^ 2.0 2.1 Existence of this isomer is unconfirmed
  3. ^ Heaviest nuclide known to undergo β+ decay
  4. ^ Not directly synthesized, occurs in the decay chain of 282Uut
  5. ^ Not directly synthesized, occurs in the decay chain of 287Uup
  6. ^ Not directly synthesized, occurs in the decay chain of 288Uup
  7. ^ Heaviest nuclide known to undergo electron capture
  8. ^ Not directly synthesized, occurs in the decay chain of 294Uus

参考文獻[编辑]

  1. ^ Universal Nuclide Chart. nucleonica. (需要註冊 (說明)). 
  2. ^ Khuyagbaatar, J.; Yakushev, A.; Düllmann, Ch. E.; 等. 48Ca+249Bk Fusion Reaction Leading to Element Z=117: Long-Lived [[Α衰变|α]]-Decaying 270Db and Discovery of 266Lr. Physical Review Letters. 2014, 112 (17): 172501. doi:10.1103/PhysRevLett.112.172501.  网址-维基内链冲突 (帮助)