# புரோமினின் ஓரிடத்தான்கள்

**புரோமின்** (**Br**) தனிமம் <sup>79</sup>Br, <sup>81</sup>Br ஆகிய இரண்டு நிலையான ஓரிடத்தான்களைக் கொண்டுள்ளது. அத்துடன் 30 தெரிந்த கதிரியக்க ஓரிடத்தான்களையும் கொண்டுள்ளது. இவற்றில் <sup>77</sup>Br இன் அரைவாழ்வுக் காலம் 57.036 ஆகும்.  

## அட்டவனை
| ஊட்டுண்ட ஆற்றல்
excitation energy |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- |
| <sup>67</sup>Br | 35 | 32 | 66.96479(54)# | 1/2-# |  |  |
| <sup>68</sup>Br | 35 | 33 | 67.95852(38)# | <1.2 µs | 3+# |  |
| <sup>69</sup>Br | 35 | 34 | 68.95011(11)# | <24 ns | 1/2-# |  |
| <sup>70</sup>Br | 35 | 35 | 69.94479(33)# | 79.1(8) ms | 0+# |  |
| <sup>70m</sup>Br | 2292.2(8) keV | 2.2(2) s | (9+) |  |  |  |
| <sup>71</sup>Br | 35 | 36 | 70.93874(61) | 21.4(6) s | (5/2)- |  |
| <sup>72</sup>Br | 35 | 37 | 71.93664(6) | 78.6(24) s | 1+ |  |
| <sup>72m</sup>Br | 100.92(3) keV | 10.6(3) s | 1- |  |  |  |
| <sup>73</sup>Br | 35 | 38 | 72.93169(5) | 3.4(2) min | 1/2- |  |
| <sup>74</sup>Br | 35 | 39 | 73.929891(16) | 25.4(3) min | (0-) |  |
| <sup>74m</sup>Br | 13.58(21) keV | 46(2) min | 4(+#) |  |  |  |
| <sup>75</sup>Br | 35 | 40 | 74.925776(15) | 96.7(13) min | 3/2- |  |
| <sup>76</sup>Br | 35 | 41 | 75.924541(10) | 16.2(2) h | 1- |  |
| <sup>76m</sup>Br | 102.58(3) keV | 1.31(2) s | (4)+ |  |  |  |
| <sup>77</sup>Br | 35 | 42 | 76.921379(3) | 57.036(6) h | 3/2- |  |
| <sup>77m</sup>Br | 105.86(8) keV | 4.28(10) min | 9/2+ |  |  |  |
| <sup>78</sup>Br | 35 | 43 | 77.921146(4) | 6.46(4) min | 1+ |  |
| <sup>78m</sup>Br | 180.82(13) keV | 119.2(10) µs | (4+) |  |  |  |
| <sup>79</sup>Br | 35 | 44 | 78.9183371(22) | STABLE | 3/2- | 0.5069(7) |
| <sup>79m</sup>Br | 207.61(9) keV | 4.86(4) s | (9/2+) |  |  |  |
| <sup>80</sup>Br | 35 | 45 | 79.9185293(22) | 17.68(2) min | 1+ |  |
| <sup>80m</sup>Br | 85.843(4) keV | 4.4205(8) h | 5- |  |  |  |
| <sup>81</sup>Br | 35 | 46 | 80.9162906(21) | STABLE | 3/2- | 0.4931(7) |
| <sup>81m</sup>Br | 536.20(9) keV | 34.6(28) µs | 9/2+ |  |  |  |
| <sup>82</sup>Br | 35 | 47 | 81.9168041(21) | 35.282(7) h | 5- |  |
| <sup>82m</sup>Br | 45.9492(10) keV | 6.13(5) min | 2- |  |  |  |
| <sup>83</sup>Br | 35 | 48 | 82.915180(5) | 2.40(2) h | 3/2- |  |
| <sup>83m</sup>Br | 3068.8(6) keV | 700(100) ns | (19/2-) |  |  |  |
| <sup>84</sup>Br | 35 | 49 | 83.916479(16) | 31.80(8) min | 2- |  |
| <sup>84m1</sup>Br | 320(10) keV | 6.0(2) min | 6- |  |  |  |
| <sup>84m2</sup>Br | 408.2(4) keV | <140 ns | 1+ |  |  |  |
| <sup>85</sup>Br | 35 | 50 | 84.915608(21) | 2.90(6) min | 3/2- |  |
| <sup>86</sup>Br | 35 | 51 | 85.918798(12) | 55.1(4) s | (2-) |  |
| <sup>87</sup>Br | 35 | 52 | 86.920711(19) | 55.65(13) s | 3/2- |  |
| <sup>88</sup>Br | 35 | 53 | 87.92407(4) | 16.29(6) s | (2-) |  |
| <sup>88m</sup>Br | 272.7(3) keV | 5.4(7) µs |  |  |  |  |
| <sup>89</sup>Br | 35 | 54 | 88.92639(6) | 4.40(3) s | (3/2-,5/2-) |  |
| <sup>90</sup>Br | 35 | 55 | 89.93063(8) | 1.91(1) s |  |  |
| <sup>91</sup>Br | 35 | 56 | 90.93397(8) | 541(5) ms | 3/2-# |  |
| <sup>92</sup>Br | 35 | 57 | 91.93926(5) | 0.343(15) s | (2-) |  |
| <sup>93</sup>Br | 35 | 58 | 92.94305(32)# | 102(10) ms | 3/2-# |  |
| <sup>94</sup>Br | 35 | 59 | 93.94868(43)# | 70(20) ms |  |  |
| <sup>95</sup>Br | 35 | 60 | 94.95287(54)# | 50# ms [>300 ns] | 3/2-# |  |
| <sup>96</sup>Br | 35 | 61 | 95.95853(75)# | 20# ms [>300 ns] |  |  |
| <sup>97</sup>Br | 35 | 62 | 96.96280(86)# | 10# ms [>300 ns] | 3/2-# | } |

## துணை நூல்கள்
- 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). *Pure Appl. Chem.* Vol. 75, No. 6, pp.&nbsp;683–800, (2003) and Atomic Weights Revised (2005) .