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Isotop radon

Ensiklopedia Pengetahuan Universitas Islam Sultan Agung

Ada 37 isotop radon (86Rn) yang diketahui, mulai dari 195Rn hingga 231Rn; semuanya bersifat radioaktif. Isotop radon yang paling stabil adalah 222Rn dengan waktu paruh 3,823 hari, meluruh menjadi 218Po. Lima isotop radon, 217, 218, 219, 220, 222Rn terjadi dalam jumlah renik di alam sebagai produk peluruhan, masing-masing, 217At, 218At, 223Ra, 224Ra, dan 226Ra. 217Rn diproduksi di cabang langka dalam rantai peluruhan 237Np dalam jumlah renik; 218Rn dan 222Rn merupakan langkah-langkah perantara dalam rantai peluruhan 238U; 219Rn merupakan langkah perantara dalam rantai peluruhan 235U; dan 220Rn terjadi pada rantai peluruhan 232Th.

Daftar isotop

|- | 195Rn | | style="text-align:right" | 86 | style="text-align:right" | 109 | 195,00544(5) | 6 mdtk | | | 3/2−# | |- | style="text-indent:1em" | 195mRn | | colspan="3" style="text-indent:2em" | 50(50) keV | 6 mdtk | | | 13/2+# | |- | rowspan=2|196Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 110 | rowspan=2|196,002115(16) | rowspan=2|4,7(11) mdtk
[4,4(+13−9) mdtk] | α | 192Po | rowspan=2|0+ | rowspan=2| |- | β+ (langka) | 196At |- | rowspan=2|197Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 111 | rowspan=2|197,00158(7) | rowspan=2|66(16) mdtk
[65(+23−14) mdtk] | α | 193Po | rowspan=2|3/2−# | rowspan=2| |- | β+ (langka) | 197At |- | rowspan=2 style="text-indent:1em" | 197mRn | rowspan=2| | rowspan=2 colspan="3" style="text-indent:2em" | 200(60)# keV | rowspan=2|21(5) mdtk
[19(+8−4) mdtk] | α | 193Po | rowspan=2|(13/2+) | rowspan=2| |- | β+ (langka) | 197At |- | rowspan=2|198Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 112 | rowspan=2|197,998679(14) | rowspan=2|65(3) mdtk | α (99%) | 194Po | rowspan=2|0+ | rowspan=2| |- | β+ (1%) | 198At |- | rowspan=2|199Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 113 | rowspan=2|198,99837(7) | rowspan=2|620(30) mdtk | α (94%) | 195Po | rowspan=2|3/2−# | rowspan=2| |- | β+ (6%) | 199At |- | rowspan=2 style="text-indent:1em" | 199mRn | rowspan=2| | rowspan=2 colspan="3" style="text-indent:2em" | 180(70) keV | rowspan=2|320(20) mdtk | α (97%) | 195Po | rowspan=2|13/2+# | rowspan=2| |- | β+ (3%) | 199At |- | rowspan=2|200Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 114 | rowspan=2|199,995699(14) | rowspan=2|0,96(3) dtk | α (98%) | 196Po | rowspan=2|0+ | rowspan=2| |- | β+ (2%) | 200At |- | rowspan=2|201Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 115 | rowspan=2|200,99563(8) | rowspan=2|7,0(4) dtk | α (80%) | 197Po | rowspan=2|(3/2−) | rowspan=2| |- | β+ (20%) | 201At |- | rowspan=3 style="text-indent:1em" | 201mRn | rowspan=3| | rowspan=3 colspan="3" style="text-indent:2em" | 280(90)# keV | rowspan=3|3,8(1) dtk | α (90%) | 197Po | rowspan=3|(13/2+) | rowspan=3| |- | β+ (10%) | 201At |- | IT (<1%) | 201Rn |- | rowspan=2|202Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 116 | rowspan=2|201,993263(19) | rowspan=2|9,94(18) dtk | α (85%) | 198Po | rowspan=2|0+ | rowspan=2| |- | β+ (15%) | 202At |- | rowspan=2|203Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 117 | rowspan=2|202,993387(25) | rowspan=2|44,2(16) dtk | α (66%) | 199Po | rowspan=2|(3/2−) | rowspan=2| |- | β+ (34%) | 203At |- | rowspan=2 style="text-indent:1em" | 203mRn | rowspan=2| | rowspan=2 colspan="3" style="text-indent:2em" | 363(4) keV | rowspan=2|26,7(5) dtk | α (80%) | 199Po | rowspan=2|13/2(+) | rowspan=2| |- | β+ (20%) | 203At |- | rowspan=2|204Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 118 | rowspan=2|203,991429(16) | rowspan=2|1,17(18) mnt | α (73%) | 200Po | rowspan=2|0+ | rowspan=2| |- | β+ (27%) | 204At |- | rowspan=2|205Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 119 | rowspan=2|204,99172(5) | rowspan=2|170(4) dtk | β+ (77%) | 205At | rowspan=2|5/2− | rowspan=2| |- | α (23%) | 201Po |- | rowspan=2|206Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 120 | rowspan=2|205,990214(16) | rowspan=2|5,67(17) mnt | α (62%) | 202Po | rowspan=2|0+ | rowspan=2| |- | β+ (38%) | 206At |- | rowspan=2|207Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 121 | rowspan=2|206,990734(28) | rowspan=2|9,25(17) mnt | β+ (79%) | 207At | rowspan=2|5/2− | rowspan=2| |- | α (21%) | 203Po |- | style="text-indent:1em" | 207mRn | | colspan="3" style="text-indent:2em" | 899,0(10) keV | 181(18) µdtk | | | (13/2+) | |- | rowspan=2|208Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 122 | rowspan=2|207,989642(12) | rowspan=2|24,35(14) mnt | α (62%) | 204Po | rowspan=2|0+ | rowspan=2| |- | β+ (38%) | 208At |- | rowspan=2|209Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 123 | rowspan=2|208,990415(21) | rowspan=2|28,5(10) mnt | β+ (83%) | 209At | rowspan=2|5/2− | rowspan=2| |- | α (17%) | 205Po |- | style="text-indent:1em" | 209m1Rn | | colspan="3" style="text-indent:2em" | 1173,98(13) keV | 13,4(13) µdtk | | | 13/2+ | |- | style="text-indent:1em" | 209m2Rn | | colspan="3" style="text-indent:2em" | 3636,78(23) keV | 3,0(3) µdtk | | | (35/2+) | |- | rowspan=2|210Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 124 | rowspan=2|209,989696(9) | rowspan=2|2,4(1) jam | α (96%) | 206Po | rowspan=2|0+ | rowspan=2| |- | β+ (4%) | 210At |- | style="text-indent:1em" | 210m1Rn | | colspan="3" style="text-indent:2em" | 1690(15) keV | 644(40) ndtk | | | 8+# | |- | style="text-indent:1em" | 210m2Rn | | colspan="3" style="text-indent:2em" | 3837(15) keV | 1,06(5) µdtk | | | (17)− | |- | style="text-indent:1em" | 210m3Rn | | colspan="3" style="text-indent:2em" | 6493(15) keV | 1,04(7) µdtk | | | (22)+ | |- | rowspan=2|211Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 125 | rowspan=2|210,990601(7) | rowspan=2|14,6(2) jam | α (72,6%) | 207Po | rowspan=2|1/2− | rowspan=2| |- | β+ (27,4%) | 211At |- | rowspan=2|212Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 126 | rowspan=2|211,990704(3) | rowspan=2|23,9(12) mnt | α | 208Po | rowspan=2|0+ | rowspan=2| |- | β+β+ (langka) | 212Po |- | 213Rn | | style="text-align:right" | 86 | style="text-align:right" | 127 | 212,993883(6) | 19,5(1) mdtk | α | 209Po | (9/2+) | |- | rowspan=2|214Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 128 | rowspan=2|213,995363(10) | rowspan=2|0,27(2) µdtk | α | 210Po | rowspan=2|0+ | rowspan=2| |- | β+β+ (langka) | 214Po |- | style="text-indent:1em" | 214mRn | | colspan="3" style="text-indent:2em" | 4595,4 keV | 245(30) ndtk | | | (22+) | |- | 215Rn | | style="text-align:right" | 86 | style="text-align:right" | 129 | 214,998745(8) | 2,30(10) µdtk | α | 211Po | 9/2+ | |- | 216Rn | | style="text-align:right" | 86 | style="text-align:right" | 130 | 216,000274(8) | 45(5) µdtk | α | 212Po | 0+ | |- | 217Rn | | style="text-align:right" | 86 | style="text-align:right" | 131 | 217,003928(5) | 0,54(5) mdtk | α | 213Po | 9/2+ | Renik[1] |- | 218Rn | | style="text-align:right" | 86 | style="text-align:right" | 132 | 218,0056013(25) | 35(5) mdtk | α | 214Po | 0+ | Renik[2] |- | 219Rn | Aktinon
Aktinium emanation | style="text-align:right" | 86 | style="text-align:right" | 133 | 219,0094802(27) | 3,96(1) dtk | α | 215Po | 5/2+ | Renik[3] |- | rowspan=2|220Rn | rowspan=2|Toron
Torium emanation | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 134 | rowspan=2|220,0113940(24) | rowspan=2|55,6(1) dtk | α[4] | 216Po | rowspan=2|0+ | rowspan=2|Renik[5] |- | β−β− (langka)[6] | 220Ra |- | rowspan=2|221Rn | rowspan=2| | rowspan=2 style="text-align:right" | 86 | rowspan=2 style="text-align:right" | 135 | rowspan=2|221,015537(6) | rowspan=2|25,7(5) mnt | β− (78%) | 221Fr | rowspan=2|7/2(+) | rowspan=2| |- | α (22%) | 217Po |- | 222Rn | Radon[7]
Radium emanation
Emanation
Emanon
Niton | style="text-align:right" | 86 | style="text-align:right" | 136 | 222,0175777(25) | 3,8235(3) hri | α[8] | 218Po | 0+ | Renik[9] |- | 223Rn | | style="text-align:right" | 86 | style="text-align:right" | 137 | 223,02179(32)# | 24,3(4) mnt | β− | 223Fr | 7/2 | |- | 224Rn | | style="text-align:right" | 86 | style="text-align:right" | 138 | 224,02409(32)# | 107(3) mnt | β− | 224Fr | 0+ | |- | 225Rn | | style="text-align:right" | 86 | style="text-align:right" | 139 | 225,02844(32)# | 4,66(4) mnt | β− | 225Fr | 7/2− | |- | 226Rn | | style="text-align:right" | 86 | style="text-align:right" | 140 | 226,03089(43)# | 7,4(1) mnt | β− | 226Fr | 0+ | |- | 227Rn | | style="text-align:right" | 86 | style="text-align:right" | 141 | 227,03541(45)# | 20,8(7) dtk | β− | 227Fr | 5/2(+#) | |- | 228Rn | | style="text-align:right" | 86 | style="text-align:right" | 142 | 228,03799(44)# | 65(2) dtk | β− | 228Fr | 0+ | |- | 229Rn[10] | | style="text-align:right" | 86 | style="text-align:right" | 143 | 229,0426536(141) | 12(1) dtk | β− | 229Fr | | |- | 230Rn[11] | | style="text-align:right" | 86 | style="text-align:right" | 144 | | | β− | 230Fr | 0+ | |- | 231Rn[12] | | style="text-align:right" | 86 | style="text-align:right" | 145 | | | β− | 231Fr | |

Referensi

  1. ↑ Produk peluruhan antara dari 237 Np
  2. ↑ Produk peluruhan antara dari 238 U
  3. ↑ Produk peluruhan antara dari 235 U
  4. ↑ Diteorikan juga mengalami peluruhan β − β − menjadi 220 Ra
  5. ↑ Produk peluruhan antara dari 232 Th
  6. ↑ Diprediksi, tapi tidak pernah teramati
  7. ↑ Asal nama unsur ini
  8. ↑ Diteorikan juga mengalami peluruhan β − β − menjadi 222 Ra
  9. ↑ Produk peluruhan antara dari 238 U
  10. ↑ D. Neidherr. Discovery of 229 Rn and the Structure of the Heaviest Rn and Ra Isotopes from Penning-Trap Mass Measurements. Physical Review Letters. 19 Maret 2009. Vol. 102 (11). hlm. 112501–1–112501–5. doi:10.1103/PhysRevLett.102.112501.
  11. ↑ Nudat 2.
  12. ↑ [1]"

Sumber dan atribusi

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