| Nomor atom | 99 |
|---|---|
| Massa atom | 252 |
| Nomor massa | 239 |
| Golongan | |
|---|---|
| Periode | 7 |
| Blok | f |
| Proton | 99 p+ |
|---|---|
| Neutron | 140 n0 |
| Elektron | 99 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, 29, 8, 2 |
| Elektron valensi | 2 ⓘ |
| konfigurasi elektron | [Rn] 5f11 7s2ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f11 7s2 |
| bilangan oksidasi | 2, 3, 4 |
| 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 | silver-colored |
| 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 | |
| mechanical property | |
| Kekerasan | |
| Modulus kompresi | |
| Modulus geser | |
| modulus Young | |
| Rasio Poisson | |
| kecepatan suara | |
| klasifikasi | |
| Kategori | Aktinida, Actinides |
| CAS Group | |
| IUPAC Group | |
| Glawe Number | 43 |
| Mendeleev Number | 34 |
| Pettifor Number | 38 |
| Geochemical Class | |
| Klasifikasi Goldschmidt | synthetic |
| Gas Basicity | |
|---|---|
| polarizability | |
| C6 Dispersion Coefficient | |
| allotrope | |
| neutron cross section | 160
|
| Neutron Mass Absorption | |
| Bilangan kuantum | 5I15/2 |
| Grup ruang | () |
| Isotop stabil | 0 |
|---|---|
| Isotop tidak stabil | 20 |
| Natural Isotopes | 0 |
| Nomor massa | 239 |
|---|---|
| nomor neutron | 140 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | |
| Spin | 3/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | |
| parity | - |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | |
| β+ (β+ decay; β+ = ϵ + e+) | |
| SF (spontaneous fission) |
| Nomor massa | 240 |
|---|---|
| nomor neutron | 141 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 6 ± 1,7 s
|
| Spin | 4 |
| nuclear quadrupole moment | |
| tanggal penemuan | 2017 |
| parity | - |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 70% |
| β+ (β+ decay; β+ = ϵ + e+) | 30% |
| β+ SF (β+-delayed fission) | 0.16% |
| Nomor massa | 241 |
|---|---|
| nomor neutron | 142 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 5,1 ± 0,8 s
|
| Spin | 3/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1996 |
| parity | - |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 100% |
| β+ (β+ decay; β+ = ϵ + e+) |
| Nomor massa | 242 |
|---|---|
| nomor neutron | 143 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 17,8 ± 1,6 s
|
| Spin | 2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1994 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 57% |
| β+ (β+ decay; β+ = ϵ + e+) | 43% |
| β+ SF (β+-delayed fission) | 0.6% |
| Nomor massa | 243 |
|---|---|
| nomor neutron | 144 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 22,1 ± 1,4 s
|
| Spin | 7/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1973 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 61% |
| β+ (β+ decay; β+ = ϵ + e+) | |
| SF (spontaneous fission) | 1% |
| Nomor massa | 244 |
|---|---|
| nomor neutron | 145 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 37 ± 4 s
|
| Spin | 6 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1973 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 95% |
| α (α emission) | 5% |
| β+ SF (β+-delayed fission) | 0.011% |
| Nomor massa | 245 |
|---|---|
| nomor neutron | 146 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 1,11 ± 0,06 m
|
| Spin | 3/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1967 |
| parity | - |
| modus peluruhan | intensitas |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 51% |
| α (α emission) | 49% |
| Nomor massa | 246 |
|---|---|
| nomor neutron | 147 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 7,5 ± 0,5 m
|
| Spin | 4 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1954 |
| parity | - |
| modus peluruhan | intensitas |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 90.1% |
| α (α emission) | 9.9% |
| β+ SF (β+-delayed fission) | 0.003% |
| Nomor massa | 247 |
|---|---|
| nomor neutron | 148 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 4,55 ± 0,26 m
|
| Spin | 7/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1967 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 93% |
| α (α emission) | 7% |
| SF (spontaneous fission) |
| Nomor massa | 248 |
|---|---|
| nomor neutron | 149 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 24 ± 3 m
|
| Spin | 2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1956 |
| parity | - |
| modus peluruhan | intensitas |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| α (α emission) | 0.25% |
| β+ SF (β+-delayed fission) | 3.5% |
| Nomor massa | 249 |
|---|---|
| nomor neutron | 150 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 102,2 ± 0,6 m
|
| Spin | 7/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1956 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| α (α emission) | 0.57% |
| Nomor massa | 250 |
|---|---|
| nomor neutron | 151 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 8,6 ± 0,1 h
|
| Spin | 6 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1956 |
| parity |
| modus peluruhan | intensitas |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| α (α emission) |
| Nomor massa | 251 |
|---|---|
| nomor neutron | 152 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 33 ± 1 h
|
| Spin | 3/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1956 |
| parity | - |
| modus peluruhan | intensitas |
|---|---|
| ϵ (electron capture) | 99.5% |
| α (α emission) | 0.5% |
| Nomor massa | 252 |
|---|---|
| nomor neutron | 153 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 471,7 ± 1,9 d
|
| Spin | 4 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1956 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 78% |
| ϵ (electron capture) | 22% |
| Nomor massa | 253 |
|---|---|
| nomor neutron | 154 |
| bobot atom | |
| g-factor | 1,1714285714286 ± 0,02
|
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 20,47 ± 0,03 d
|
| Spin | 7/2 |
| nuclear quadrupole moment | 6,7 ± 0,8
|
| tanggal penemuan | 1954 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 100% |
| SF (spontaneous fission) | 8.7% |
| Nomor massa | 254 |
|---|---|
| nomor neutron | 155 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 275,7 ± 0,5 d
|
| Spin | 7 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1954 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| α (α emission) | 100% |
| ϵ (electron capture) | |
| β− (β− decay) | 1.74% |
| SF (spontaneous fission) | 3% |
| Nomor massa | 255 |
|---|---|
| nomor neutron | 156 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 39,8 ± 1,2 d
|
| Spin | 7/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1954 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| β− (β− decay) | 92% |
| α (α emission) | 8% |
| SF (spontaneous fission) | 0.0041% |
| Nomor massa | 256 |
|---|---|
| nomor neutron | 157 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 7,6 h
|
| Spin | 7 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1976 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| β− (β− decay) | 100% |
| β− SF (β−-delayed fission) | 0.002% |
| Nomor massa | 257 |
|---|---|
| nomor neutron | 158 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | 7,7 ± 0,2 d
|
| Spin | 7/2 |
| nuclear quadrupole moment | |
| tanggal penemuan | 1987 |
| parity | + |
| modus peluruhan | intensitas |
|---|---|
| β− (β− decay) | 100% |
| α (α emission) |
| Nomor massa | 258 |
|---|---|
| nomor neutron | 159 |
| bobot atom | |
| g-factor | |
| natural abundance | |
| peluruhan radioaktif | ☢️ radioactive element |
| Waktu paruh | |
| Spin | |
| nuclear quadrupole moment | |
| tanggal penemuan | |
| parity |
| modus peluruhan | intensitas |
|---|---|
| β− (β− decay) | |
| α (α emission) |
| penemu atau pencipta | Argonne, Los Alamos, U of Calif |
|---|---|
| tempat penemuan | United States |
| tanggal penemuan | 1952 |
| etimologi | Named in honor of the scientist Albert Einstein. |
| pelafalan | ine-STINE-i-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 %
|