Nomor atom | 98 |
---|---|
Massa atom | 251 |
Nomor massa | 237 |
Golongan | |
---|---|
Periode | 7 |
Blok | f |
Proton | 98 p+ |
---|---|
Neutron | 139 n0 |
Elektron | 98 e- |
Energi | |
---|---|
proton affinity | |
Afinitas elektron | |
Energi ionisasi | 6,2817 eV/particle
|
Panas penguapan | |
kalor peleburan | |
Perubahan entalpi pembentukan standar | 196 kJ/mol
|
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 | Solid |
gaseous state of matter | |
Titik didih | |
Titik lebur | 1.173,15 K
|
critical pressure | |
critical temperature | |
Titik tripel | |
appearance | |
warna | Tak berwarna
|
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 | Segienam Sederhana () |
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 %
|