Antimon (51Sb) yang terbentuk secara alami terdiri dari dua isotop stabil, 121Sb dan 123Sb. Ada 35 isotop radioaktif buatan, yang paling lama berumur 125Sb, dengan waktu paruh 2,75856 tahun; 124Sb, dengan waktu paruh 60,2 hari; dan 126Sb, dengan waktu paruh 12,35 hari. Semua isotop lain memiliki waktu paruh kurang dari 4 hari, kebanyakan kurang dari satu jam. Unsur ini juga memiliki banyak isomer, yang berumur paling panjang adalah 120m1Sb dengan waktu paruh 5,76 hari.
Daftar isotop
Nuklida [n 1]
|
Z
|
N
|
Massa isotop (Da) [n 2][n 3]
|
Waktu paruh
|
Mode peluruhan [n 4]
|
Isotop anak [n 5][n 6]
|
Spin dan paritas [n 7][n 8]
|
Kelimpahan alami (fraksi mol)
|
Energi eksitasi[n 8]
|
Proporsi normal
|
Rentang variasi
|
103Sb
|
51
|
52
|
102,93969(32)#
|
100# mdtk [>1,5 µdtk]
|
β+
|
103Sn
|
5/2+#
|
|
|
104Sb
|
51
|
53
|
103,93647(39)#
|
0,47(13) dtk [0,44(+15−11) dtk]
|
β+ (86%)
|
104Sn
|
|
|
|
p (7%)
|
103Sn
|
β+, p (7%)
|
103In
|
α (<1%)
|
100In
|
105Sb
|
51
|
54
|
104,93149(11)
|
1,12(16) dtk
|
β+ (99%)
|
105Sn
|
(5/2+)
|
|
|
p (1%)
|
104Sn
|
β+, p (<1%)
|
104In
|
106Sb
|
51
|
55
|
105,92879(34)#
|
0,6(2) dtk
|
β+
|
106Sn
|
(4+)
|
|
|
106mSb
|
1000(500)# keV
|
220(20) ndtk
|
|
|
|
|
|
107Sb
|
51
|
56
|
106,92415(32)#
|
4,0(2) dtk
|
β+
|
107Sn
|
5/2+#
|
|
|
108Sb
|
51
|
57
|
107,92216(22)#
|
7,4(3) dtk
|
β+
|
108Sn
|
(4+)
|
|
|
β+, p (langka)
|
107In
|
109Sb
|
51
|
58
|
108,918132(20)
|
17,3(5) dtk
|
β+
|
109Sn
|
5/2+#
|
|
|
110Sb
|
51
|
59
|
109,91675(22)#
|
23,0(4) dtk
|
β+
|
110Sn
|
(4+)
|
|
|
111Sb
|
51
|
60
|
110,91316(3)
|
75(1) dtk
|
β+
|
111Sn
|
(5/2+)
|
|
|
112Sb
|
51
|
61
|
111,912398(19)
|
51,4(10) dtk
|
β+
|
112Sn
|
3+
|
|
|
113Sb
|
51
|
62
|
112,909372(19)
|
6,67(7) mnt
|
β+
|
113Sn
|
5/2+
|
|
|
114Sb
|
51
|
63
|
113,90927(3)
|
3,49(3) mnt
|
β+
|
114Sn
|
(3+)
|
|
|
114mSb
|
495,5(7) keV
|
219(12) µdtk
|
|
|
(8−)
|
|
|
115Sb
|
51
|
64
|
114,906598(17)
|
32,1(3) mnt
|
β+
|
115Sn
|
5/2+
|
|
|
116Sb
|
51
|
65
|
115,906794(6)
|
15,8(8) mnt
|
β+
|
116Sn
|
3+
|
|
|
116m1Sb
|
93,99(5) keV
|
194(4) ndtk
|
|
|
1+
|
|
|
116m2Sb
|
380(40) keV
|
60,3(6) mnt
|
β+
|
116Sn
|
8−
|
|
|
117Sb
|
51
|
66
|
116,904836(10)
|
2,80(1) jam
|
β+
|
117Sn
|
5/2+
|
|
|
118Sb
|
51
|
67
|
117,905529(4)
|
3,6(1) mnt
|
β+
|
118Sn
|
1+
|
|
|
118m1Sb
|
50,814(21) keV
|
20,6(6) µdtk
|
|
|
(3)+
|
|
|
118m2Sb
|
250(6) keV
|
5,00(2) jam
|
β+
|
118Sn
|
8−
|
|
|
119Sb
|
51
|
68
|
118,903942(9)
|
38,19(22) jam
|
EC
|
119Sn
|
5/2+
|
|
|
119m1Sb
|
2553,6(3) keV
|
130(3) ndtk
|
|
|
(19/2−)
|
|
|
119m2Sb
|
2852(7) keV
|
850(90) mdtk
|
IT
|
119Sb
|
27/2+#
|
|
|
120Sb
|
51
|
69
|
119,905072(8)
|
15,89(4) mnt
|
β+
|
120Sn
|
1+
|
|
|
120m1Sb
|
0(100)# keV
|
5,76(2) hri
|
β+
|
120Sn
|
8−
|
|
|
120m2Sb
|
78,16(5) keV
|
246(2) ndtk
|
|
|
(3+)
|
|
|
120m3Sb
|
2328,3(6) keV
|
400(8) ndtk
|
|
|
(6)
|
|
|
121Sb[n 9]
|
51
|
70
|
120,9038157(24)
|
Stabil[n 10]
|
5/2+
|
0,5721(5)
|
|
122Sb
|
51
|
71
|
121,9051737(24)
|
2,7238(2) hri
|
β− (97,59%)
|
122Te
|
2−
|
|
|
β+ (2,41%)
|
122Sn
|
122m1Sb
|
61,4131(5) keV
|
1,86(8) µdtk
|
|
|
3+
|
|
|
122m2Sb
|
137,4726(8) keV
|
0,53(3) mdtk
|
|
|
(5)+
|
|
|
122m3Sb
|
163,5591(17) keV
|
4,191(3) mnt
|
IT
|
122Sb
|
(8)−
|
|
|
123Sb[n 9]
|
51
|
72
|
122,9042140(22)
|
Stabil[n 10]
|
7/2+
|
0,4279(5)
|
|
124Sb
|
51
|
73
|
123,9059357(22)
|
60,20(3) hri
|
β−
|
124Te
|
3−
|
|
|
124m1Sb
|
10,8627(8) keV
|
93(5) dtk
|
IT (75%)
|
124Sb
|
5+
|
|
|
β− (25%)
|
124Te
|
124m2Sb
|
36,8440(14) keV
|
20,2(2) mnt
|
|
|
(8)−
|
|
|
124m3Sb
|
40,8038(7) keV
|
3,2(3) µdtk
|
|
|
(3+, 4+)
|
|
|
125Sb
|
51
|
74
|
124,9052538(28)
|
2,75856(25) thn
|
β−
|
125mTe
|
7/2+
|
|
|
126Sb
|
51
|
75
|
125,90725(3)
|
12,35(6) hri
|
β−
|
126Te
|
(8−)
|
|
|
126m1Sb
|
17,7(3) keV
|
19,15(8) mnt
|
β− (86%)
|
126Te
|
(5+)
|
|
|
IT (14%)
|
126Sb
|
126m2Sb
|
40,4(3) keV
|
~11 dtk
|
IT
|
126m1Sb
|
(3−)
|
|
|
126m3Sb
|
104,6(3) keV
|
553(5) ndtk
|
|
|
(3+)
|
|
|
127Sb
|
51
|
76
|
126,906924(6)
|
3,85(5) hri
|
β−
|
127mTe
|
7/2+
|
|
|
128Sb
|
51
|
77
|
127,909169(27)
|
9,01(4) jam
|
β−
|
128Te
|
8−
|
|
|
128mSb
|
10(7) keV
|
10,4(2) mnt
|
β− (96,4%)
|
128Te
|
5+
|
|
|
IT (3,6%)
|
128Sb
|
129Sb
|
51
|
78
|
128,909148(23)
|
4,40(1) jam
|
β−
|
129mTe
|
7/2+
|
|
|
129m1Sb
|
1851,05(10) keV
|
17,7(1) mnt
|
β− (85%)
|
129Te
|
(19/2−)
|
|
|
IT (15%)
|
129Sb
|
129m2Sb
|
1860,90(10) keV
|
>2 µdtk
|
|
|
(15/2−)
|
|
|
129m3Sb
|
2138,9(5) keV
|
1,1(1) µdtk
|
|
|
(23/2+)
|
|
|
130Sb
|
51
|
79
|
129,911656(18)
|
39,5(8) mnt
|
β−
|
130Te
|
(8−)#
|
|
|
130mSb
|
4,80(20) keV
|
6,3(2) mnt
|
β−
|
130Te
|
(4, 5)+
|
|
|
131Sb
|
51
|
80
|
130,911982(22)
|
23,03(4) mnt
|
β−
|
131mTe
|
(7/2+)
|
|
|
132Sb
|
51
|
81
|
131,914467(15)
|
2,79(5) mnt
|
β−
|
132Te
|
(4+)
|
|
|
132m1Sb
|
200(30) keV
|
4,15(5) mnt
|
β−
|
132Te
|
(8−)
|
|
|
132m2Sb
|
254,5(3) keV
|
102(4) ndtk
|
|
|
(6−)
|
|
|
133Sb
|
51
|
82
|
132,915252(27)
|
2,5(1) mnt
|
β−
|
133mTe
|
(7/2+)
|
|
|
134Sb
|
51
|
83
|
133,92038(5)
|
0,78(6) dtk
|
β−
|
134Te
|
(0-)
|
|
|
134mSb
|
80(110) keV
|
10,07(5) dtk
|
β− (99,9%)
|
134Te
|
(7−)
|
|
|
β−, n (0,091%)
|
133Te
|
135Sb
|
51
|
84
|
134,92517(11)
|
1,68(2) dtk
|
β− (82,4%)
|
135Te
|
(7/2+)
|
|
|
β−, n (17,6%)
|
134Te
|
136Sb
|
51
|
85
|
135,93035(32)#
|
0,923(14) dtk
|
β− (83%)
|
136Te
|
1−#
|
|
|
β−, n (17%)
|
135Te
|
136mSb
|
173(3) keV
|
570(50) ndtk
|
|
|
6−#
|
|
|
137Sb
|
51
|
86
|
136,93531(43)#
|
450(50) mdtk
|
β−
|
137Te
|
7/2+#
|
|
|
β−, n
|
136Te
|
138Sb
|
51
|
87
|
137,94079(32)#
|
500# mdtk [>300 ndtk]
|
β−
|
138Te
|
2−#
|
|
|
β−, n
|
137Te
|
139Sb
|
51
|
88
|
138,94598(54)#
|
300# mdtk [>300 ndtk]
|
β−
|
139Te
|
7/2+#
|
|
|
Header & footer tabel ini: view
|
- ^ mSb – Isomer nuklir tereksitasi.
- ^ ( ) – Ketidakpastian (1σ) diberikan dalam bentuk ringkas dalam tanda kurung setelah digit terakhir yang sesuai.
- ^ # – Massa atom bertanda #: nilai dan ketidakpastian yang diperoleh bukan dari data eksperimen murni, tetapi setidaknya sebagian dari tren dari Permukaan Massa (trends from the Mass Surface, TMS).
- ^
Mode peluruhan:
- ^ Simbol miring tebal sebagai anak – Produk anak hampir stabil.
- ^ Simbol tebal sebagai anak – Produk anak stabil.
- ^ ( ) nilai spin – Menunjukkan spin dengan argumen penempatan yang lemah.
- ^ a b # – Nilai yang ditandai # tidak murni berasal dari data eksperimen, tetapi setidaknya sebagian dari tren nuklida tetangga (trends of neighboring nuclides, TNN).
- ^ a b Produk fisi
- ^ a b Secara teoritis mampu mengalami fisi spontan
Referensi
- Massa isotop dari:
- Komposisi isotop dan massa atom standar dari:
- "News & Notices: Standard Atomic Weights Revised". International Union of Pure and Applied Chemistry. 19 Oktober 2005.
- Data waktu paruh, spin, dan isomer dipilih dari sumber-sumber berikut.
- Audi, Georges; Bersillon, Olivier; Blachot, Jean; Wapstra, Aaldert Hendrik (2003), "The NUBASE evaluation of nuclear and decay properties", Nuclear Physics A, 729: 3–128, Bibcode:2003NuPhA.729....3A, doi:10.1016/j.nuclphysa.2003.11.001
- National Nuclear Data Center. "NuDat 2.x database". Laboratorium Nasional Brookhaven.
- Holden, Norman E. (2004). "11. Table of the Isotopes". Dalam Lide, David R. CRC Handbook of Chemistry and Physics (edisi ke-85). Boca Raton, Florida: CRC Press. ISBN 978-0-8493-0485-9.
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