Tellurium isotopes

Tellurium isotopes are varieties of the tellurium chemical element with different numbers of neutrons in the nucleus . There are 39 known tellurium isotopes with mass numbers from 104 to 142 (the number of protons 52, neutrons from 52 to 90), and 18 nuclear isomers . ^[one]

Tellurium is the lightest element whose known isotopes are subject to alpha decay (isotopes from ¹⁰⁶ Te to ¹¹⁰ Te).

Eight tellurium isotopes are found in nature. Of these, six are stable:

¹²⁰ Te ( isotopic prevalence 0.09%)
¹²² Te (isotopic abundance 2.55%)
¹²³ Te (isotopic prevalence 0.89%)
¹²⁴ Te (isotopic prevalence 4.74%)
¹²⁵ Te (isotopic prevalence of 7.07%)
¹²⁶ Te (isotopic abundance 18.84%)

Two more isotopes have huge half-lives , much more than the age of the Universe :

¹²⁸ Te (isotopic abundance 31.74%), half-life 2.2⋅10 ²⁴ years
¹³⁰ Te (isotopic prevalence 34.08%), half-life 7.9⋅10 ²⁰ years

The ¹²⁸ Te isotope has the longest confirmed half -life of all radionuclides , 2.2⋅10 ²⁴ years, which is approximately 160 trillion times the estimated age of the Universe .

Tellurium isotope table

Symbol nuclide	Z ( p )	N ( n )	Isotope mass ^[2] ( a.m. )	Period half-life ^[1] (T _1/2 )	Spin and Parity kernels ^[1]
Symbol nuclide	Excitation energy			Period half-life ^[1] (T _1/2 )	Spin and Parity kernels ^[1]
¹⁰⁵ Te	52	53	104,94364	1 μs	5/2 +
¹⁰⁶ Te	52	54	105,93750	70 μs	0+
¹⁰⁷ Te	52	55	106,93501	3.1 ms	5/2 +
¹⁰⁸ Te	52	56	107,92944	2.1 s	0+
¹⁰⁹ Te	52	57	108,92742	4.6 s	5/2 +
¹¹⁰ Te	52	58	109.92241	18.6 s	0+
¹¹¹ Te	52	59	110.92111	19.3 s	5/2 +
¹¹² Te	52	60	111,91701	2.0 min	0+
¹¹³ Te	52	61	112,91589	1.7 min	7/2 +
¹¹⁴ Te	52	62	113.91209	15.2 min	0+
¹¹⁵ Te	52	63	114.91190	5.8 min	7/2 +
^115m1 Te	10 keV			6.7 min	1/2 +
^115m2 Te	280.05 keV			7.5 μs	11 / 2-
¹¹⁶ Te	52	64	115,90846	2.49 h	0+
¹¹⁷ Te	52	65	116.908645	62 min	1/2 +
^117m Te	296.1 keV			103 ms	11 / 2-
¹¹⁸ Te	52	66	117.905828	6.00 days	0+
¹¹⁹ Te	52	67	118,906404	16.05 h	1/2 +
^119m Te	260.96 keV			4.70 days	11 / 2-
¹²⁰ Te	52	68	119.90402	stable	0+
¹²¹ Te	52	69	120.904936	19.16 days	1/2 +
^121m Te	293,991 keV			154 days	11 / 2-
¹²² Te	52	70	121.9030439	stable	0+
¹²³ te	52	71	122,9042700	stable	1/2 +
^123m Te	247.47 keV			119.2 days	11 / 2-
¹²⁴ Te	52	72	123.9028179	stable	0+
¹²⁵ Te	52	73	124.9044307	stable	1/2 +
^125m Te	144.772 keV			57.40 days	11 / 2-
¹²⁶ Te	52	74	125.9033117	stable	0+
¹²⁷ Te	52	75	126,9052263	9.35 h	3/2 +
^127m Te	88.26 keV			109 days	11 / 2-
¹²⁸ Te	52	76	127.9044631	2.2⋅10 ²⁴ years	0+
^128m Te	2.7907 MeV			370 ns	10+
¹²⁹ Te	52	77	128.9065982	69.6 min	3/2 +
^129m Te	105.50 keV			33.6 days	11 / 2-
¹³⁰ Te	52	78	129.9062244	7.9⋅10 ²⁰ years	0+
^130m1 Te	2.14641 MeV			115 ns	7-
^130m2 Te	2.661 MeV			1.90 μs	10+
^130m3 Te	4.3754 MeV			261 ns
¹³¹ Te	52	79	130.9085239	25.0 min	3/2 +
^131m Te	182,250 keV			30 h	11 / 2-
¹³² Te	52	80	131,908553	3,204 days	0+
¹³³ Te	52	81	132,910955	12.5 min	3/2 +
^133m Te	334.26 keV			55.4 min	11 / 2-
¹³⁴ Te	52	82	133,911369	41.8 min	0+
^134m Te	1.69134 MeV			164.1 ns	6+
¹³⁵ Te	52	83	134,91645	19.0 s	7 / 2-
^135m Te	1.55488 MeV			510 ns	19 / 2-
¹³⁶ Te	52	84	135.92010	17.63 s	0+
¹³⁷ Te	52	85	136.92532	2.49 s	3 / 2-
¹³⁸ Te	52	86	137,92922	1.4 s	0+
¹³⁹ Te	52	87	138,93473	500 ms	5 / 2-
¹⁴⁰ Te	52	88	139.93885	300 ms	0+
¹⁴¹ Te	52	89	140,94465	100 ms	5 / 2-
¹⁴² Te	52	90	141.94908	50 ms	0+
¹⁴³ Te	52	91		> 408 ns

Notes

↑ ¹ ² ³ Data are given for Audi G. , Bersillon O. , Blachot J. , Wapstra AH The NUBASE evaluation of nuclear and decay properties // Nuclear Physics A. - 2003 .-- T. 729 . - S. 3—128 . - DOI : 10.1016 / j.nuclphysa.2003.11.001 . - .
↑ Data shown for Audi G. , Wapstra AH , Thibault C. The AME2003 atomic mass evaluation (II). Tables, graphs, and references (Eng.) // Nuclear Physics A. - 2003. - Vol. 729 . - P. 337–676 . - DOI : 10.1016 / j.nuclphysa.2003.11.003 . - .

Antimony isotopes Periodic table on isotopes of elements. Iodine isotopes.

one
H

2
He

3
Li

four
Be

five
B

6
C

7
N

eight
O

9
F

ten
Ne

eleven
Na

12
Mg

13
Al

14
Si

15
P

sixteen
S

17
Cl

18
Ar

nineteen
K

20
Ca

21
Sc

22
Ti

23
V

24
Cr

25
Mn

26
Fe

27
Co

28
Ni

29th
Cu

thirty
Zn

31
Ga

32
Ge

33
As

34
Se

35
Br

36
Kr

37
Rb

38
Sr

39
Y

40
Zr

41
Nb

42
Mo

43
Tc

44
Ru

45
Rh

46
Pd

47
Ag

48
Cd

49
In

50
Sn

51
Sb

52
Te

53
I

54
Xe

55
Cs

56
Ba

*

72
Hf

73
Ta

74
W

75
Re

76
Os

77
Ir

78
Pt

79
Au

80
Hg

81
Tl

82
Pb

83
Bi

84
Po

85
At

86
Rn

87
Fr

88
Ra

**

104
Rf

105
Db

106
Sg

107
Bh

108
Hs

109
Mt

110
Ds

111
Rg

112
Cn

113
Nh

114
Fl

115
Mc

116
Lv

117
Ts

118
Og

*

57
La

58
Ce

59
Pr

60
Nd

61
Pm

62
Sm

63
Eu

64
Gd

65
Tb

66
Dy

67
Ho

68
Er

69
Tm

70
Yb

71
Lu

**

89
Ac

90
Th

91
Pa

92
U

93
Np

94
Pu

95
Am

96
Cm

97
Bk

98
Cf

99
Es

100
Fm

101
Md

102
No

103
Lr

[Nubase2003-1] ¹ ² ³ Data are given for Audi G. , Bersillon O. , Blachot J. , Wapstra AH The NUBASE evaluation of nuclear and decay properties // Nuclear Physics A. - 2003 .-- T. 729 . - S. 3—128 . - DOI : 10.1016 / j.nuclphysa.2003.11.001 . - .

[AME2003-2] Data shown for Audi G. , Wapstra AH , Thibault C. The AME2003 atomic mass evaluation (II). Tables, graphs, and references (Eng.) // Nuclear Physics A. - 2003. - Vol. 729 . - P. 337–676 . - DOI : 10.1016 / j.nuclphysa.2003.11.003 . - .

Tellurium isotopes

Tellurium isotope table

Notes

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