Дубний

Дубний (Db)

chemical element with the atomic number of 105
Atomic Number105
Atomic Weight268
Адади массавӣ255
Group5
Period7
Blockd
proton105 p+
neutron150 n0
electron105 e-
Animated Bohr model of Db (Дубний)

Хусусияти Физикӣ

Atomic Radius
molar volume
covalent radius
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
зичӣ

Chemical Property

энергия
proton affinity
electron affinity
ionization energy
ionization energy of Db (Дубний)
enthalpy of vaporization
гармои гудозиш
standard enthalpy of formation
electron
Абри электронӣ2, 8, 18, 32, 32, 11, 2
Bohr model: Db (Дубний)
valence electron2
Lewis structure: Db (Дубний)
electron configuration[Rn] 5f14 6d3 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f14 6d3 7s2
Enhanced Bohr model of Db (Дубний)
Orbital Diagram of Db (Дубний)
oxidation number5
electronegativity
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
appearance
Ранг
Colorless
appearance
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
навъ
electrical conductivity
electrical resistivity
superconductivity
magnetism
навъ
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
сохт
Crystal Structure ()
lattice constant
Lattice Angles
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
classification
CategoryTransition metals, Transition metals
CAS GroupVA
IUPAC GroupVB
Glawe Number
Mendeleev Number50
Pettifor Number
Geochemical Class
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
ададҳои квантӣ4F3/2
space group ()

Isotopes of Dubnium

Stable Isotopes0
Unstable Isotopes16
Natural Isotopes0

255Db

Адади массавӣ255
neutron number150
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
54 ms
spin9/2
nuclear quadrupole moment
таърихи кашф1976
parity+

decay modeintensity
SF (spontaneous fission)67%
α (α emission)

256Db

Адади массавӣ256
neutron number151
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,7 ± 0,4 s
spin9
nuclear quadrupole moment
таърихи кашф2001
parity-

decay modeintensity
α (α emission)70%
β+ (β+ decay; β+ = ϵ + e+)30%
SF (spontaneous fission)

257Db

Адади массавӣ257
neutron number152
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,3 ± 0,2 s
spin9/2
nuclear quadrupole moment
таърихи кашф1985
parity+

decay modeintensity
α (α emission)94%
SF (spontaneous fission)6%
β+ (β+ decay; β+ = ϵ + e+)

258Db

Адади массавӣ258
neutron number153
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,17 ± 0,36 s
spin0
nuclear quadrupole moment
0
таърихи кашф1985
parity-

decay modeintensity
α (α emission)64%
β+ (β+ decay; β+ = ϵ + e+)36%

259Db

Адади массавӣ259
neutron number154
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
510 ± 160 ms
spin9/2
nuclear quadrupole moment
таърихи кашф2001
parity+

decay modeintensity
α (α emission)100%

260Db

Адади массавӣ260
neutron number155
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,52 ± 0,13 s
spin
nuclear quadrupole moment
таърихи кашф1970
parity

decay modeintensity
α (α emission)90.4%
SF (spontaneous fission)9.6%
β+ (β+ decay; β+ = ϵ + e+)

261Db

Адади массавӣ261
neutron number156
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
4,7 ± 1 s
spin9/2
nuclear quadrupole moment
таърихи кашф1970
parity+

decay modeintensity
SF (spontaneous fission)73%
α (α emission)27%

262Db

Адади массавӣ262
neutron number157
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
34 ± 4 s
spin
nuclear quadrupole moment
таърихи кашф1971
parity

decay modeintensity
SF (spontaneous fission)52%
α (α emission)48%
β+ (β+ decay; β+ = ϵ + e+)

263Db

Адади массавӣ263
neutron number158
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
29 ± 9 s
spin9/2
nuclear quadrupole moment
таърихи кашф1992
parity+

decay modeintensity
SF (spontaneous fission)56%
α (α emission)37%
β+ (β+ decay; β+ = ϵ + e+)6.9%

264Db

Адади массавӣ264
neutron number159
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin
nuclear quadrupole moment
таърихи кашф
parity

decay modeintensity
α (α emission)

265Db

Адади массавӣ265
neutron number160
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin9/2
nuclear quadrupole moment
таърихи кашф
parity+

decay modeintensity
α (α emission)

266Db

Адади массавӣ266
neutron number161
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
80 ± 70 m
spin
nuclear quadrupole moment
таърихи кашф2007
parity

decay modeintensity
α (α emission)
SF (spontaneous fission)
β+ (β+ decay; β+ = ϵ + e+)

267Db

Адади массавӣ267
neutron number162
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2 ± 1,1 h
spin9/2
nuclear quadrupole moment
таърихи кашф2004
parity+

decay modeintensity
SF (spontaneous fission)100%

268Db

Адади массавӣ268
neutron number163
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
29 ± 3 h
spin
nuclear quadrupole moment
таърихи кашф2004
parity

decay modeintensity
SF (spontaneous fission)100%
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)

269Db

Адади массавӣ269
neutron number164
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin9/2
nuclear quadrupole moment
таърихи кашф
parity+

decay modeintensity
α (α emission)
SF (spontaneous fission)

270Db

Адади массавӣ270
neutron number165
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,7 ± 1 h
spin
nuclear quadrupole moment
таърихи кашф2010
parity

decay modeintensity
SF (spontaneous fission)87%
α (α emission)13%
Electron shell 105 Dubnium

таърих

кошифA. Ghiorso, et al
макони кашфUnited States
таърихи кашф1970
РешашиносӣNamed after the city of Dubna, the site of the JINR.
pronunciationHA-ni-em (Англисӣ)

source

Abundance
Abundance in Earth's crust
natural abundance (Уқёнус)
natural abundance (human body)
0 %
natural abundance (meteoroid)
0 %
natural abundance (Офтоб)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants