루비듐 동위 원소

자연계에는 존재하는 루비듐의 동위 원소는 2종이며 85Rb와 87Rb이 존재하고 있다. 여기서 85Rb는 안정 동위 원소이며, 87Rb는 반감기가 492억 3천만년의 긴 반감기를 가진 방사성 동위 원소이다.
루비듐-87은 스트론튬-87로 붕괴하며, 루비듐-스트론튬 연대 측정에 이용된다.
 핵자수
 Z(p)
 N(n)
  동위 원소 질량 (u) 
 반감기
 붕괴방식IT: 이성질핵 전이
 붕괴 생성동위 원소
 핵스핀
 자연계에 존재하는동위 원소범위(몰 분율)
 자연계에 존재하는최대 범위(몰 분율)
 들뜬 에너지
 71Rb
 37
 34
 70.96532(54)#
 p
 70Kr
 5/2-#
 72Rb
 37
 35
 71.95908(54)#
 71Kr
 3+#
 72mRb
 100(100)# keV
 1# µs
 p
 71Kr
 1-#
 73Rb
 37
 36
 72.95056(16)#
 72Kr
 3/2-#
 74Rb
 37
 37
 73.944265(4)
 64.76(3) ms
 β+
 74Kr
 (0+)
 75Rb
 37
 38
 74.938570(8)
 19.0(12) s
 β+
 75Kr
 (3/2-)
76Rb
 37
 39
75.9350722(20)
36.5(6) s
 β+
 76Kr
1(-)
 β+, α (3.8×10−7%)
 72Se
 76mRb
 316.93(8) keV
 3.050(7) µs
 (4+)
 77Rb
 37
 40
 76.930408(8)
 3.77(4) min
 β+
 77Kr
 3/2-
 78Rb
 37
 41
 77.928141(8)
 17.66(8) min
 β+
 '''78Kr'''
 0(+)
 78mRb
 111.20(10) keV
5.74(5) min
 β+ (90%)
 '''78Kr'''
4(-)
 IT (10%)
 78Rb
 79Rb
 37
 42
 78.923989(6)
 22.9(5) min
 β+
 79Kr
 5/2+
 80Rb
 37
 43
 79.922519(7)
 33.4(7) s
 β+
 '''80Kr'''
 1+
 80mRb
 494.4(5) keV
 1.6(2) µs
 6+
 81Rb
 37
 44
 80.918996(6)
 4.570(4) h
 β+
 81Kr
 3/2-
 81mRb
 86.31(7) keV
30.5(3) min
 IT (97.6%)
 81Rb
9/2+
 β+ (2.4%)
 81Kr
 82Rb
 37
 45
 81.9182086(30)
 1.273(2) min
 β+
 '''82Kr'''
 1+
 82mRb
 69.0(15) keV
6.472(5) h
 β+ (99.67%)
 '''82Kr'''
5-
 IT (.33%)
 82Rb
 83Rb
 37
 46
 82.915110(6)
 86.2(1) d
 ε
 '''83Kr'''
 5/2-
 83mRb
 42.11(4) keV
 7.8(7) ms
 IT
 83Rb
 9/2+
84Rb
 37
 47
83.914385(3)
33.1(1) d
 β+ (96.2%)
 '''84Kr'''
2-
 β- (3.8%)
 '''84Sr'''
 84mRb
 463.62(9) keV
20.26(4) min
 IT (>99.9%)
 84Rb
6-
 β+ (84Kr'''
 85Rb
 37
 48
 84.911789738(12)
'''안정'''
 5/2-
 0.7217(2)
86Rb
 37
 49
85.91116742(21)
18.642(18) d
 β- (99.9948%)
 '''86Sr'''
2-
 ε (.0052%)
 '''86Kr'''
 86mRb
 556.05(18) keV
 1.017(3) min
 IT
 86Rb
 6-
 87Rb
 37
 50
 86.909180527(13)
 '''4.923(22)×1010 a'''
 β-
 '''87Sr'''
 3/2-
 0.2783(2)
 88Rb
 37
 51
 87.91131559(17)
 17.773(11) min
 β-
 '''88Sr'''
 2-
 89Rb
 37
 52
 88.912278(6)
 15.15(12) min
 β-
 89Sr
 3/2-
 90Rb
 37
 53
 89.914802(7)
 158(5) s
 β-
 90Sr
 0-
 90mRb
 106.90(3) keV
258(4) s
 β- (97.4%)
 90Sr
3-
 IT (2.6%)
 90 Rb
 91Rb
 37
 54
 90.916537(9)
 58.4(4) s
 β-
 91Sr
 3/2(-)
92Rb
 37
 55
91.919729(7)
4.492(20) s
 β- (99.98%)
 92Sr
0-
 β-, n (.0107%)
 91Sr
93Rb
 37
 56
92.922042(8)
5.84(2) s
 β- (98.65%)
 93Sr
5/2-
 β-, n (1.35%)
 92Sr
 93mRb
 253.38(3) keV
 57(15) µs
 (3/2-,5/2-)
94Rb
 37
 57
93.926405(9)
2.702(5) s
 β- (89.99%)
 94Sr
3(-)
 β-, n (10.01%)
 93Sr
95Rb
 37
 58
94.929303(23)
377.5(8) ms
 β- (91.27%)
 95Sr
5/2-
 β-, n (8.73%)
 94Sr
96Rb
 37
 59
95.93427(3)
202.8(33) ms
 β- (86.6%)
 96Sr
2+
 β-, n (13.4%)
 95Sr
 96mRb
 0(200)# keV
200# ms >1 ms
 β-
 96Sr
1(-#)
 IT
 96Rb
 β-, n
 95Sr
97Rb
 37
 60
96.93735(3)
169.9(7) ms
 β- (74.3%)
 97Sr
3/2+
 β-, n (25.7%)
 96Sr
98Rb
 37
 61
97.94179(5)
114(5) ms
 β-(86.14%)
 98Sr
(0,1)(-#)
 β-, n (13.8%)
 97Sr
 β-, 2n (.051%)
 96Sr
 98mRb
 290(130) keV
 96(3) ms
 β-
 97Sr
 (3,4)(+#)
99Rb
 37
 62
98.94538(13)
50.3(7) ms
 β- (84.1%)
 99Sr
(5/2+)
 β-, n (15.9%)
 98Sr
100Rb
 37
 63
99.94987(32)#
51(8) ms
 β- (94.25%)
 100Sr
(3+)
 β-, n (5.6%)
 99Sr
 β-, 2n (.15%)
 98Sr
101Rb
 37
 64
100.95320(18)
32(5) ms
 β- (69%)
 101Sr
(3/2+)#
 β-, n (31%)
 100Sr
102Rb
 37
 65
101.95887(54)#
37(5) ms
 β- (82%)
 102Sr
 β-, n (18%)
 101Sr
동위 원소
 
분류:원소별 동위 원소 목록