Dubnium

Dubnium (Db)

chemical element with the atomic number of 105
Atomic Number105
Atomic Weight268
Massagetal255
Group5
Period7
Blockd
proton105 p+
neutron150 n0
elektron105 e-
Animated Bohr model of Db (Dubnium)

Physical Property

Atoomradius
molar volume
Covalent Radius
Metallic Radius
Ioonradius
Crystal Radius
Van der Waals radius
density

Chemical Property

energie
proton affinity
electron affinity
ionization energy
ionization energy of Db (Dubnium)
Verdampingswarmte
smeltingswarmte
Vormingsentalpie
elektron
Elektronskil2, 8, 18, 32, 32, 11, 2
Bohr model: Db (Dubnium)
Valenselektrone2
Lewisteorie: Db (Dubnium)
elektronkonfigurasie[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 (Dubnium)
Orbital Diagram of Db (Dubnium)
Oksidasietoestand5
Elektronegatiwiteit
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
appearance
kleur
Colorless
appearance
Brekingsindeks
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
Geleidingsvermoë
Elektriese resistiwiteit
superconductivity
Magnetisme
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal Structure{ERROR}
lattice constant
Lattice Angles
mechanical property
hardness
Massamodulus
Skuifmodulus
Young se modulus
Poisson se verhouding
Spoed van klank
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
quantum number4F3/2
Ruimtegroep ()

Isotopes of Dubnium

Stable Isotopes0
Unstable Isotopes16
Natural Isotopes0

255Db

Massagetal255
neutron number150
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
54 ms
spin9/2
nuclear quadrupole moment
ontdekkingsdatum1976
parity+

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

256Db

Massagetal256
neutron number151
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
1,7 ± 0,4 s
spin9
nuclear quadrupole moment
ontdekkingsdatum2001
parity-

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

257Db

Massagetal257
neutron number152
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
2,3 ± 0,2 s
spin9/2
nuclear quadrupole moment
ontdekkingsdatum1985
parity+

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

258Db

Massagetal258
neutron number153
Relative Atomic Mass
g-factor
0
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
2,17 ± 0,36 s
spin0
nuclear quadrupole moment
0
ontdekkingsdatum1985
parity-

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

259Db

Massagetal259
neutron number154
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
510 ± 160 ms
spin9/2
nuclear quadrupole moment
ontdekkingsdatum2001
parity+

decay modeintensity
α (α emission)100%

260Db

Massagetal260
neutron number155
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
1,52 ± 0,13 s
spin
nuclear quadrupole moment
ontdekkingsdatum1970
parity

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

261Db

Massagetal261
neutron number156
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
4,7 ± 1 s
spin9/2
nuclear quadrupole moment
ontdekkingsdatum1970
parity+

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

262Db

Massagetal262
neutron number157
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
34 ± 4 s
spin
nuclear quadrupole moment
ontdekkingsdatum1971
parity

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

263Db

Massagetal263
neutron number158
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
29 ± 9 s
spin9/2
nuclear quadrupole moment
ontdekkingsdatum1992
parity+

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

264Db

Massagetal264
neutron number159
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
spin
nuclear quadrupole moment
ontdekkingsdatum
parity

decay modeintensity
α (α emission)

265Db

Massagetal265
neutron number160
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
spin9/2
nuclear quadrupole moment
ontdekkingsdatum
parity+

decay modeintensity
α (α emission)

266Db

Massagetal266
neutron number161
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
80 ± 70 m
spin
nuclear quadrupole moment
ontdekkingsdatum2007
parity

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

267Db

Massagetal267
neutron number162
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
2 ± 1,1 h
spin9/2
nuclear quadrupole moment
ontdekkingsdatum2004
parity+

decay modeintensity
SF (spontaneous fission)100%

268Db

Massagetal268
neutron number163
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
29 ± 3 h
spin
nuclear quadrupole moment
ontdekkingsdatum2004
parity

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

269Db

Massagetal269
neutron number164
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
spin9/2
nuclear quadrupole moment
ontdekkingsdatum
parity+

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

270Db

Massagetal270
neutron number165
Relative Atomic Mass
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
1,7 ± 1 h
spin
nuclear quadrupole moment
ontdekkingsdatum2010
parity

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

geskiedenis

Ontdek deurA. Ghiorso, et al
ligging van ontdekkingUnited States
ontdekkingsdatum1970
etimologieNamed after the city of Dubna, the site of the JINR.
uitspraakHA-ni-em (Engels)

source

Abundance
Abundance in Earth's crust
natural abundance (oseaan)
natural abundance (human body)
0 %
natural abundance (Meteoroïde)
0 %
natural abundance (Son)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants