Maintenance script: Presentation V4: sitasi, referensi, Math, Wikimedia Commons, dan atribusi

2026-08-28T03:58:14Z

Presentation V4: sitasi, referensi, Math, Wikimedia Commons, dan atribusi

Maintenance script: Impor teks terkontrol dari Wikipedia bahasa Indonesia; revisi 29029759; atribusi sumber disertakan.

2026-08-28T03:20:25Z

Impor teks terkontrol dari Wikipedia bahasa Indonesia; revisi 29029759; atribusi sumber disertakan.

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'''[[Aktinium]]''' ('''89Ac''') tidak memiliki satu pun [[isotop]] [[Isotop stabil|stabil]] dan tidak memiliki komposisi isotop terestrial yang khas, sehingga [[berat atom standar]]nya tidak dapat diberikan. Ada 32 isotop aktinium yang diketahui, mulai dari 205Ac hingga 236Ac, dan 7 [[Isomer nuklir|isomer]]. Tiga isotop ditemukan di alam, [[aktinium-225|225Ac]], 227Ac dan 228Ac, sebagai [[produk peluruhan]] [[Senyawa intermediat|antara]] dari, masing-masing, [[Neptunium-237|237Np]], [[Uranium-235|235U]], dan [[Torium-232|232Th]]. 228Ac dan 225Ac sangat jarang, jadi hampir seluruh aktinium alami merupakan 227Ac.

Isotop aktinium yang paling stabil adalah 227Ac dengan [[waktu paruh]] 21,772 tahun, 225Ac dengan waktu paruh 10,0 hari, dan 226Ac dengan waktu paruh 29,37 jam. Semua isotop lain memiliki waktu paruh di bawah 10 jam, dan sebagian besar di bawah satu menit. Isotop berumur paling pendek yang diketahui adalah 217Ac dengan waktu paruh [[Nano-|nano]]detik.

227Ac yang dimurnikan akan mencapai kesetimbangan dengan produk peluruhannya (227Th dan 223Fr) setelah 185 hari.

==Daftar isotop==

|205Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 116
|
| 20(+97−9) [[Mili-|m]]dtk
| [[Peluruhan alfa|α]]
| 201Fr
|
|

| 206Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 117
| 206,01450(8)
| 25(7) mdtk
|
|
| (3+)
|

| style="text-indent:1em" | 206m1Ac
|
| colspan="3" style="text-indent:2em" | 80(50) keV
| 15(6) mdtk
|
|
|
|

| style="text-indent:1em" | 206m2Ac
|
| colspan="3" style="text-indent:2em" | 290(110)# keV
| 41(16) mdtk
|
|
| (10−)
|

| 207Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 118
| 207,01195(6)
| 31(8) mdtk [27(+11−6) mdtk]
| α
| 203Fr
| 9/2−#
|

| rowspan=2|208Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 119
| rowspan=2|208,01155(6)
| rowspan=2|97(16) mdtk [95(+24−16) mdtk]
| α (99%)
| 204Fr
| rowspan=2|(3+)
| rowspan=2|

| β+ (1%)
| 208Ra

| rowspan=3 style="text-indent:1em" | 208mAc
| rowspan=3|
| rowspan=3 colspan="3" style="text-indent:2em" | 506(26) keV
| rowspan=3|28(7) mdtk [25(+9−5) mdtk]
| α (89%)
| 204Fr
| rowspan=3|(10−)
| rowspan=3|

| [[Transisi isomerik|IT]] (10%)
| 208Ac

| β+ (1%)
| 208Ra

| rowspan=2|209Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 120
| rowspan=2|209,00949(5)
| rowspan=2|92(11) mdtk
| α (99%)
| 205Fr
| rowspan=2|(9/2−)
| rowspan=2|

| β+ (1%)
| 209Ra

| rowspan=2|210Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 121
| rowspan=2|210,00944(6)
| rowspan=2|350(40) mdtk
| α (96%)
| 206Fr
| rowspan=2|7+#
| rowspan=2|

| β+ (4%)
| 210Ra

| rowspan=2|211Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 122
| rowspan=2|211,00773(8)
| rowspan=2|213(25) mdtk
| α (99,8%)
| 207Fr
| rowspan=2|9/2−#
| rowspan=2|

| β+ (0,2%)
| 211Ra

| rowspan=2|212Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 123
| rowspan=2|212,00781(7)
| rowspan=2|920(50) mdtk
| α (97%)
| 208Fr
| rowspan=2|6+#
| rowspan=2|

| β+ (3%)
| 212Ra

| rowspan=2|213Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 124
| rowspan=2|213,00661(6)
| rowspan=2|731(17) mdtk
| α
| 209Fr
| rowspan=2|(9/2−)#
| rowspan=2|

| β+ (langka)
| 213Ra

| rowspan=2|214Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 125
| rowspan=2|214,006902(24)
| rowspan=2|8,2(2) dtk
| α (89%)
| 210Fr
| rowspan=2|(5+)#
| rowspan=2|

| β+ (11%)
| 214Ra

| rowspan=2|215Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 126
| rowspan=2|215,006454(23)
| rowspan=2|0.17(1) dtk
| α (99,91%)
| 211Fr
| rowspan=2|9/2−
| rowspan=2|

| β+ (0,09%)
| 215Ra

| rowspan=2|216Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 127
| rowspan=2|216,008720(29)
| rowspan=2|0,440(16) mdtk
| α
| 212Fr
| rowspan=2|(1−)
| rowspan=2|

| β+ (7%)
| 216Ra

| style="text-indent:1em" | 216mAc
|
| colspan="3" style="text-indent:2em" | 44(7) keV
| 443(7) [[Mikro-|µ]]dtk
|
|
| (9−)
|

| rowspan=2|217Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 128
| rowspan=2|217,009347(14)
| rowspan=2|69(4) [[Nano-|n]]dtk
| α (98%)
| 213Fr
| rowspan=2|9/2−
| rowspan=2|

| β+ (6,9%)
| 217Ra

| style="text-indent:1em" | 217mAc
|
| colspan="3" style="text-indent:2em" | 2012(20) keV
| 740(40) ndtk
|
|
| (29/2)+
|

| 218Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 129
| 218,01164(5)
| 1,08(9) µdtk
| α
| 214Fr
| (1−)#
|

| style="text-indent:1em" | 218mAc
|
| colspan="3" style="text-indent:2em" | 584(50)# keV
| 103(11) ndtk
|
|
| (11+)
|

| rowspan=2|219Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 130
| rowspan=2|219,01242(5)
| rowspan=2|11,8(15) µdtk
| α
| 215Fr
| rowspan=2|9/2−
| rowspan=2|

| β+ (10−6%)
| 219Ra

| rowspan=2|220Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 131
| rowspan=2|220,014763(16)
| rowspan=2|26,36(19) mdtk
| α
| 216Fr
| rowspan=2|(3−)
| rowspan=2|

| β+ (5%)
| 220Ra

| 221Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 132
| 221,01559(5)
| 52(2) mdtk
| α
| 217Fr
| 9/2−#
|

| rowspan=2|222Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 133
| rowspan=2|222,017844(6)
| rowspan=2|5,0(5) dtk
| α (99%)
| 218Fr
| rowspan=2|1−
| rowspan=2|

| β+ (1%)
| 222Ra

| rowspan=3 style="text-indent:1em" | 222mAc
| rowspan=3|
| rowspan=3 colspan="3" style="text-indent:2em" | 200(150)# keV
| rowspan=3|1,05(7) mnt
| α (88,6%)
| 218Fr
| rowspan=3|tinggi
| rowspan=3|

| IT (10%)
| 222Ac

| β+ (1,4%)
| 222Ra

| rowspan=3|223Ac
| rowspan=3|
| rowspan=3 style="text-align:right" | 89
| rowspan=3 style="text-align:right" | 134
| rowspan=3|223,019137(8)
| rowspan=3|2,10(5) mnt
| α (99%)
| 219Fr
| rowspan=3|(5/2−)
| rowspan=3|

| [[Penangkapan elektron|EC]] (1%)
| 223Ra

| [[Peluruhan gugus|CD]] (3,2%)
| '''''209Bi''''' [[Karbon-14|14C]]

| rowspan=3|224Ac
| rowspan=3|
| rowspan=3 style="text-align:right" | 89
| rowspan=3 style="text-align:right" | 135
| rowspan=3|224,021723(4)
| rowspan=3|2,78(17) jam
| β+ (90,9%)
| 224Ra
| rowspan=3|0−
| rowspan=3|

| α (9,1%)
| 220Fr

| β− (1,6%)
| 224Th

| rowspan=2|[[aktinium-225|225Ac]]
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 136
| rowspan=2|225,023230(5)
| rowspan=2|10,0(1) hri
| α
| 221Fr
| rowspan=2|(3/2−)
| rowspan=2|Renik

| CD (6%)
| 211Bi 14C

| rowspan=3|226Ac
| rowspan=3|
| rowspan=3 style="text-align:right" | 89
| rowspan=3 style="text-align:right" | 137
| rowspan=3|226,026098(4)
| rowspan=3|29,37(12) jam
| β− (83%)
| 226Th
| rowspan=3|(1)(−#)
| rowspan=3|

| EC (17%)
| 226Ra

| α (0,006%)
| 222Fr

| rowspan=2|227Ac
| rowspan=2|Aktinium
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 138
| rowspan=2|227,0277521(26)
| rowspan=2|21,772(3) thn
| β− (98,61%)
| 227Th
| rowspan=2|3/2−
| rowspan=2|Renik

| α (1,38%)
| 223Fr

| rowspan=2|228Ac
| rowspan=2|Mesotorium 2
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 139
| rowspan=2|228,0310211(27)
| rowspan=2|6,13(2) jam
| β−
| 228Th
| rowspan=2|3+
| rowspan=2|Renik

| α (5,5%)
| 224Fr

| 229Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 140
| 229,03302(4)
| 62,7(5) mnt
| β−
| 229Th
| (3/2+)
|

| 230Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 141
| 230,03629(32)
| 122(3) dtk
| β−
| 230Th
| (1+)
|

| 231Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 142
| 231,03856(11)
| 7,5(1) mnt
| β−
| 231Th
| (1/2+)
|

| 232Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 143
| 232,04203(11)
| 119(5) dtk
| β−
| '''''232Th'''''
| (1+)
|

| 233Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 144
| 233,04455(32)#
| 145(10) dtk
| β−
| 233Th
| (1/2+)
|

| 234Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 145
| 234,04842(43)#
| 44(7) dtk
| β−
| 234Th
|
|

| 235Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 146
| 235,05123(38)#
| 60(4) dtk
| β−
| 235Th
| 1/2+#
|

| 236Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 147
| 236,05530(54)#
| 72(+345-33) dtk
| β−
| 236Th
|
|

==Referensi==

* Massa isotop dari:
**
* Komposisi isotop dan massa atom standar dari:
**
**
* Data waktu paruh, spin, dan isomer dipilih dari sumber-sumber berikut.
**
**
**

== Sumber dan atribusi ==

Konten artikel ini diadaptasi dari [https://id.wikipedia.org/w/index.php?title=Isotop+aktinium&oldid=29029759 Wikipedia bahasa Indonesia], revisi 29029759 (2026-03-12T11:29:20Z), yang tersedia berdasarkan lisensi Creative Commons Atribusi-BerbagiSerupa (CC BY-SA). Mohon gunakan konten ini secara bijak serta sesuai dengan ketentuan lisensi yang berlaku.

Isotop aktinium - Riwayat revisi

Maintenance script: Presentation V4: sitasi, referensi, Math, Wikimedia Commons, dan atribusi

Maintenance script: Impor teks terkontrol dari Wikipedia bahasa Indonesia; revisi 29029759; atribusi sumber disertakan.