| Nomor atom | 98 |
|---|---|
| Massa atom | 251 |
| Nomor massa | 237 |
| Golongan | |
|---|---|
| Periode | 7 |
| Blok | f |
| Proton | 98 p+ |
|---|---|
| Neutron | 139 n0 |
| Elektron | 98 e- |
| Jari-Jari Atom | |
|---|---|
| Volume molar | |
| Jari-jari kovalen | |
| Metallic Radius | |
| Jari-jari ion | |
| Crystal Radius | |
| Jari-jari van der Waals | |
| kepadatan |
| Energi | |
|---|---|
| proton affinity | |
| Afinitas elektron | |
| Energi ionisasi | |
| Panas penguapan | |
| kalor peleburan | |
| Perubahan entalpi pembentukan standar | |
| Elektron | |
| kelopak elektron | 2, 8, 18, 32, 28, 8, 2 |
| Elektron valensi | 2 ⓘ |
| konfigurasi elektron | [Rn] 5f10 7s2ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f10 7s2 |
| bilangan oksidasi | 2, 3, 4, 5 |
| elektronegativitas | |
| Electrophilicity Index | |
| kondisi dasar materi | |
| fase zat | {ERROR}|
| gaseous state of matter | |
| Titik didih | |
| Titik lebur | |
| critical pressure | |
| critical temperature | |
| Titik tripel | |
| appearance | |
| warna | Hitam
|
| appearance | silvery |
| Indeks bias | |
| thermodynamic material property | |
| Kondusivitas termal | |
| Pemuaian | |
| molar heat capacity | |
| Kapasitas kalor molar | |
| heat capacity ratio | |
| electrical properties | |
| tipe | |
| konduktivitas listrik | |
| resistivitas listrik | |
| superkonduktivitas | |
| magnetisme | |
| tipe | |
| Suseptibilitas magnetik batuan (Mass) | |
| Suseptibilitas magnetik batuan (Molar) | |
| Suseptibilitas magnetik batuan (Volume) | |
| magnetic ordering | |
| Curie temperature | |
| Néel temperature | |
| struktur | |
| Struktur kristal | {ERROR} |
| Konstanta kisi | |
| Lattice Angles | π/2, π/2, 2 π/3 |
| mechanical property | |
| Kekerasan | |
| Modulus kompresi | |
| Modulus geser | |
| modulus Young | |
| Rasio Poisson | |
| kecepatan suara | |
| klasifikasi | |
| Kategori | Aktinida, Actinides |
| CAS Group | |
| IUPAC Group | |
| Glawe Number | 42 |
| Mendeleev Number | 32 |
| Pettifor Number | 39 |
| Geochemical Class | |
| Klasifikasi Goldschmidt | synthetic |
| Gas Basicity | |
|---|---|
| polarizability | |
| C6 Dispersion Coefficient | |
| allotrope | |
| neutron cross section | 2.900
|
| Neutron Mass Absorption | |
| Bilangan kuantum | 5I8 |
| Grup ruang | 194 (P63/mmc) |
| Isotop stabil | 0 |
|---|---|
| Isotop tidak stabil | 20 |
| Natural Isotopes | 0 |
| Nomor massa | 237 |
|---|---|
| nomor neutron | 139 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 0,8 ± 0,2 s
|
| Spin | 5/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1995 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 70% |
| SF (spontaneous fission) | 30% |
| β+ (β+ decay; β+ = ϵ + e+) |
| Nomor massa | 238 |
|---|---|
| nomor neutron | 140 |
| bobot atom | |
| g-factor | 0
|
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 21,1 ± 1,3 ms
|
| Spin | 0 |
| nuclear quadrupole moment | 0
|
| tanggal penemuan | 1995 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| SF (spontaneous fission) | 97.5% |
| α (α emission) | 2.5% |
| Nomor massa | 239 |
|---|---|
| nomor neutron | 141 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 28 ± 2 s
|
| Spin | 5/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1981 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 65% |
| β+ (β+ decay; β+ = ϵ + e+) |
| Nomor massa | 240 |
|---|---|
| nomor neutron | 142 |
| bobot atom | |
| g-factor | 0
|
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 40,3 ± 0,9 s
|
| Spin | 0 |
| nuclear quadrupole moment | 0
|
| tanggal penemuan | 1970 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 98.5% |
| SF (spontaneous fission) | 1.5% |
| β+ (β+ decay; β+ = ϵ + e+) |
| Nomor massa | 241 |
|---|---|
| nomor neutron | 143 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 2,35 ± 0,18 m
|
| Spin | 7/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1970 |
| parity | - |
| modus peluruhan | intensitas |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | |
| α (α emission) | 15% |
| Nomor massa | 242 |
|---|---|
| nomor neutron | 144 |
| bobot atom | |
| g-factor | 0
|
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 3,49 ± 0,15 m
|
| Spin | 0 |
| nuclear quadrupole moment | 0
|
| tanggal penemuan | 1967 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 61% |
| β+ (β+ decay; β+ = ϵ + e+) | 39% |
| SF (spontaneous fission) | 0.014% |
| Nomor massa | 243 |
|---|---|
| nomor neutron | 145 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 10,8 ± 0,3 m
|
| Spin | 1/2 |
| nuclear quadrupole moment | 0
|
| tanggal penemuan | 1967 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 86% |
| α (α emission) | 14% |
| Nomor massa | 244 |
|---|---|
| nomor neutron | 146 |
| bobot atom | |
| g-factor | 0
|
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 19,5 ± 0,5 m
|
| Spin | 0 |
| nuclear quadrupole moment | 0
|
| tanggal penemuan | 1956 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 75% |
| ϵ (electron capture) | 25% |
| Nomor massa | 245 |
|---|---|
| nomor neutron | 147 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 45 ± 1,5 m
|
| Spin | 1/2 |
| nuclear quadrupole moment | 0
|
| tanggal penemuan | 1956 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 64.7% |
| α (α emission) | 35.3% |
| Nomor massa | 246 |
|---|---|
| nomor neutron | 148 |
| bobot atom | |
| g-factor | 0
|
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 35,7 ± 0,5 h
|
| Spin | 0 |
| nuclear quadrupole moment | 0
|
| tanggal penemuan | 1951 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 100% |
| SF (spontaneous fission) | 2.4% |
| ϵ (electron capture) |
| Nomor massa | 247 |
|---|---|
| nomor neutron | 149 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 3,11 ± 0,03 h
|
| Spin | 7/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1954 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| ϵ (electron capture) | 99.965% |
| α (α emission) | 0.035% |
| Nomor massa | 248 |
|---|---|
| nomor neutron | 150 |
| bobot atom | |
| g-factor | 0
|
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 333,5 ± 2,8 d
|
| Spin | 0 |
| nuclear quadrupole moment | 0
|
| tanggal penemuan | 1954 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 100% |
| SF (spontaneous fission) | 0.0029% |
| Nomor massa | 249 |
|---|---|
| nomor neutron | 151 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 351 ± 2 y
|
| Spin | 9/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1954 |
| parity | - |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 100% |
| SF (spontaneous fission) | 5% |
| Nomor massa | 250 |
|---|---|
| nomor neutron | 152 |
| bobot atom | |
| g-factor | 0
|
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 13,08 ± 0,09 y
|
| Spin | 0 |
| nuclear quadrupole moment | 0
|
| tanggal penemuan | 1954 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 99.923% |
| SF (spontaneous fission) | 0.077% |
| Nomor massa | 251 |
|---|---|
| nomor neutron | 153 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 898 ± 44 y
|
| Spin | 1/2 |
| nuclear quadrupole moment | 0
|
| tanggal penemuan | 1954 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 100% |
| SF (spontaneous fission) |
| Nomor massa | 252 |
|---|---|
| nomor neutron | 154 |
| bobot atom | |
| g-factor | 0
|
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 2,645 ± 0,008 y
|
| Spin | 0 |
| nuclear quadrupole moment | 0
|
| tanggal penemuan | 1954 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 96.8972% |
| SF (spontaneous fission) | 3.1028% |
| Nomor massa | 253 |
|---|---|
| nomor neutron | 155 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 17,81 ± 0,08 d
|
| Spin | 7/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1954 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| β− (β− decay) | 99.69% |
| α (α emission) | 0.31% |
| Nomor massa | 254 |
|---|---|
| nomor neutron | 156 |
| bobot atom | |
| g-factor | 0
|
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 60,5 ± 0,2 d
|
| Spin | 0 |
| nuclear quadrupole moment | 0
|
| tanggal penemuan | 1955 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| SF (spontaneous fission) | 99.69% |
| α (α emission) | 0.31% |
| 2β− (double β− decay) |
| Nomor massa | 255 |
|---|---|
| nomor neutron | 157 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 85 ± 18 m
|
| Spin | 7/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1981 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| β− (β− decay) | 100% |
| SF (spontaneous fission) | |
| α (α emission) |
| Nomor massa | 256 |
|---|---|
| nomor neutron | 158 |
| bobot atom | |
| g-factor | 0
|
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 12,3 ± 1,2 m
|
| Spin | 0 |
| nuclear quadrupole moment | 0
|
| tanggal penemuan | 1980 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| SF (spontaneous fission) | 100% |
| α (α emission) | |
| 2β− (double β− decay) |
| penemu atau pencipta | G.T.Seaborg, S.G.Tompson, A.Ghiorso, K.Street Jr. |
|---|---|
| tempat penemuan | United States |
| tanggal penemuan | 1950 |
| etimologi | Named after the state and University of California. |
| pelafalan | kal-eh-FOR-ni-em (Inggris) |
| Kelimpahan alami | |
|---|---|
| Kelimpahan di kerak bumi | |
| natural abundance (samudra) | |
| natural abundance (tubuh manusia) | 0 %
|
| natural abundance (Meteoroid) | 0 %
|
| natural abundance (matahari) | 0 %
|
| Kelimpahan di alam semesta | 0 %
|