硫(原子质量单位:32.065(5))共有25个同位素,其中有4个是稳定的。
Quick Facts 同位素, 衰变 ...
主要的硫同位素
在天然硫样品中,34S的丰度变化率很大,会在 3.96% 和 4.77% 之间变动。 |
标准原子质量 (Ar, 标准) | - [32.059, 32.076][1]
- 传统: 32.06
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More information 符号, Z ...
符号
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Z
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N
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同位素质量(u) [n 1][n 2]
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半衰期 [n 1][n 2]
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衰变 方式[2]
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衰变 产物 [n 3]
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原子核 自旋[n 1]
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相对丰度 (莫耳分率)[n 2]
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相对丰度 的变化量 (莫耳分率)
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激发能量[n 2]
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26S
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16
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10
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26.02788(32)#
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10# ms
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2p
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24Si
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0+
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27S[n 4]
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16
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11
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27.01883(22)#
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15.5(15) ms
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β+ (98.0%)
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27P
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(5/2+)
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β+, 2p (2.0%)
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25Al
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β+, p (<.1%)
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26Si
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28S
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16
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12
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28.00437(17)
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125(10) ms
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β+ (79.3%)
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28P
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0+
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β+, p (20.7%)
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27Si
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29S
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16
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13
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28.99661(5)
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187(4) ms
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β+ (53.6%)
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29P
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5/2+
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β+, p (46.4%)
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28Si
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30S
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16
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14
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29.984903(3)
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1.178(5) s
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β+
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30P
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0+
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31S
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16
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15
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30.9795547(16)
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2.572(13) s
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β+
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31P
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1/2+
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32 S [n 5]
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16
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16
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31.97207100(15)
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稳定
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0+
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0.9493(31)
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0.94454-0.95281
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33S
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16
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17
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32.97145876(15)
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稳定
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3/2+
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0.0076(2)
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0.00730-0.00793
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34S
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16
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18
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33.96786690(12)
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稳定
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0+
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0.0429(28)
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0.03976-0.04734
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35S
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16
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19
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34.96903216(11)
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87.51(12) d
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β−
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35Cl
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3/2+
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痕量或天然放射性[n 6]
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宇宙成因
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36S
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16
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20
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35.96708076(20)
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稳定
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0+
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2(1)×10−4
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1.3×10−4-2.7×10−4
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37S
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16
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21
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36.97112557(21)
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5.05(2) min
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β−
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37Cl
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7/2−
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38S
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16
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22
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37.971163(8)
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170.3(7) min
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β−
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38Cl
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0+
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39S
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16
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23
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38.97513(5)
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11.5(5) s
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β−
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39Cl
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(3/2,5/2,7/2)−
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40S
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16
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24
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39.97545(15)
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8.8(22) s
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β−
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40Cl
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0+
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41S
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16
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25
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40.97958(13)
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1.99(5) s
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β− (>99.9%)
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41Cl
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(7/2−)#
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β−, n (<.1%)
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40Cl
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42S
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16
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26
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41.98102(13)
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1.013(15) s
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β− (96%)
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42Cl
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0+
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β−, n (4%)
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41Cl
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43S
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16
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27
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42.98715(22)
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260(15) ms
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β− (60%)
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43Cl
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3/2−#
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β−, n (40%)
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42Cl
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43mS
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319(5) keV
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480(50) ns
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(7/2−)
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44S
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16
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28
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43.99021(42)
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100(1) ms
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β− (82%)
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44Cl
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0+
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β−, n (18%)
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43Cl
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45S
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16
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29
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44.99651(187)
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68(2) ms
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β−, n (54%)
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44Cl
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3/2−#
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β− (46%)
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45Cl
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46S
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16
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30
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46.00075(75)#
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50(8) ms
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β−
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46Cl
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0+
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47S
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16
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31
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47.00859(86)#
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20# ms [>200 ns]
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β−
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47Cl
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3/2−#
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48S
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16
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32
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48.01417(97)#
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10# ms [>200 ns]
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β−
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48Cl
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0+
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49S
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16
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33
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49.02362(102)#
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<200 ns
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n
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48S
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3/2−#
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Close
画上#号的数据代表没有经过实验的证明,仅为理论推测。
Heaviest theoretically stable nuclide with equal numbers of protons and neutrons
- Isotope masses from Ame2003 Atomic Mass Evaluation by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
- Isotopic compositions and standard atomic masses from Atomic weights of the elements. Review 2000 (IUPAC Technical Report) (页面存档备份,存于互联网档案馆). Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and Atomic Weights Revised (2005) (页面存档备份,存于互联网档案馆).
- Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.
- Audi, Bersillon, Blachot, Wapstra. The Nubase2003 evaluation of nuclear and decay properties (页面存档备份,存于互联网档案馆), Nuc. Phys. A 729, pp. 3-128 (2003).
- National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database (页面存档备份,存于互联网档案馆) (retrieved Sept. 2005).
- David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes.