鎵（原子量：69723 1）共有 34 個同位素，其中有 2 個是穩定的。 圖表 56Ga styletextalignright 31 styletextalignright 25 5599491 28 55Zn 3 57Ga styletextalignright 31 styletextalignright 26 5698293 28 56Zn 12 58Ga styletextalignright 31 styletextalignright 27 5797425 23 57Zn 2 59Ga styletextalignright 31 styletextalignright 28 5896337 18 58Zn 32 60Ga styletextalignright 31 styletextalignright 29 5995706 12 70 10 ms 60Zn 2 61Ga styletextalignright 31 styletextalignright 30 6094945 6 168 3 ms 61Zn 32 62Ga styletextalignright 31 styletextalignright 31 61944175 30 11618 4 ms 62Zn 0 63Ga styletextalignright 31 styletextalignright 32 629392942 14 324 5 s 63Zn 32 64Ga styletextalignright 31 styletextalignright 33 639368387 22 2627 12 min 64Zn 0 styletextindent1em 64mGa colspan3 styletextindent2em 4285 8 keV 219 7 µs 2 65Ga styletextalignright 31 styletextalignright 34 649327348 9 152 2 min 65Zn 32 66Ga styletextalignright 31 styletextalignright 35 65931589 3 949 7 h 66Zn 0 67Ga Deexcitation gamma used in medical imaging styletextalignright 31 styletextalignright 36 669282017 14 32612 6 d 67Zn 32 68GaMedically useful radioisotope styletextalignright 31 styletextalignright 37 679279801 16 67783 27 min 68Zn 1 styletextalignright 31 styletextalignright 38 689255736 13 colspan3 aligncenter 32 060108 50 rowspan270Ga rowspan2 styletextalignright 31 rowspan2 styletextalignright 39 rowspan2699260220 13 rowspan22114 3 min 9959 70Ge rowspan21 rowspan2 041 70Zn 71Ga styletextalignright 31 styletextalignright 40 709247013 11 colspan3 aligncenter 32 039892 50 72Ga styletextalignright 31 styletextalignright 41 719263663 11 14095 3 h 72Ge 3 styletextindent1em 72mGa colspan3 styletextindent2em 11966 5 keV 3968 13 ms IT 72Ga 0 73Ga styletextalignright 31 styletextalignright 42 729251747 18 486 3 h 73Ge 32 74Ga styletextalignright 31 styletextalignright 43 73926946 4 812 12 min 74Ge 3 styletextindent1em 74mGa colspan3 styletextindent2em 59571 14 keV 95 10 s 0 75Ga styletextalignright 31 styletextalignright 44 749265002 26 126 2 s 75Ge 32 76Ga styletextalignright 31 styletextalignright 45 759288276 21 326 6 s 76Ge 23 77Ga styletextalignright 31 styletextalignright 46 769291543 26 132 2 s 77Ge 32 78Ga styletextalignright 31 styletextalignright 47 779316082 26 509 5 s 78Ge 3 rowspan279Ga rowspan2 styletextalignright 31 rowspan2 styletextalignright 48 rowspan27893289 11 rowspan22847 3 s 99911 79mGe rowspan232 rowspan2 089 78Ge rowspan280Ga rowspan2 styletextalignright 31 rowspan2 styletextalignright 49 rowspan27993652 13 rowspan21697 11 s 9911 80Ge rowspan23 rowspan2 89 79Ge rowspan281Ga rowspan2 styletextalignright 31 rowspan2 styletextalignright 50 rowspan28093775 21 rowspan21217 5 s 8811 81mGe rowspan252 rowspan2 1189 80Ge rowspan282Ga rowspan2 styletextalignright 31 rowspan2 styletextalignright 51 rowspan28194299 32 rowspan20599 2 s 785 82Ge rowspan2123 rowspan2 215 81Ge rowspan283Ga rowspan2 styletextalignright 31 rowspan2 styletextalignright 52 rowspan28294698 32 rowspan2308 1 ms 60 83Ge rowspan232 rowspan2 40 82Ge rowspan284Ga rowspan2 styletextalignright 31 rowspan2 styletextalignright 53 rowspan28395265 43 rowspan20085 10 s 70 83Ge rowspan2 rowspan2 30 84Ge 85Ga styletextalignright 31 styletextalignright 54 8495700 54 50 ms 300 ns 32 86Ga styletextalignright 31 styletextalignright 55 8596312 86 30 ms 300 ns 參考文獻 Isotope masses from Ame2003 Atomic Mass Evaluation by G Audi AH Wapstra C Thibault J Blachot and O Bersillon in Nuclear Physics A729 2003 Halflife spin and isomer data selected from these sources Editing notes on this articles talk page Audi Bersillon Blachot Wapstra The Nubase2003 evaluation of nuclear and decay properties Nuc Phys A 729 pp 3128 2003 National Nuclear Data Center Brookhaven National Laboratory Information extracted from the NuDat 21 database 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 Ga Category 鎵