Dubnium (Db)

chemical element with the atomic number of 105

Atomic Number	105
Atomic Weight	268
Numri i masës	255

Group	5
Period	7
Block	d

protoni	105 p⁺
neutroni	150 n⁰
elektroni	105 e^-

Tipar Fizik

Atomic Radius
molar volume
covalent radius	149 pm 136 pm 126 pm
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
density	29,3 g/cm³

Chemical Property

energjia

proton affinity
electron affinity
ionization energy	6,8 eV/particle 14 eV/particle 23,1 eV/particle 33 eV/particle 43 eV/particle 86 eV/particle 98,9 eV/particle 126 eV/particle 145 eV/particle 172 eV/particle 196 eV/particle 220,9 eV/particle 254 eV/particle 274 eV/particle 307 eV/particle 838 eV/particle 872 eV/particle 908 eV/particle 948 eV/particle 985 eV/particle 1 022 eV/particle 1 089 eV/particle 1 126 eV/particle 1 168 eV/particle 1 207 eV/particle 3 975 eV/particle 4 057 eV/particle 4 145 eV/particle 4 237 eV/particle 4 326 eV/particle 4 411 eV/particle 4 620 eV/particle 4 710 eV/particle 4 810 eV/particle 4 900 eV/particle 5 260 eV/particle 5 350 eV/particle 5 450 eV/particle 5 530 eV/particle 6 280 eV/particle 6 380 eV/particle 6 650 eV/particle 6 760 eV/particle 10 420 eV/particle 10 610 eV/particle 10 820 eV/particle 11 040 eV/particle 11 240 eV/particle 11 440 eV/particle 12 040 eV/particle 12 250 eV/particle 12 480 eV/particle 12 700 eV/particle 13 300 eV/particle 13 500 eV/particle 13 700 eV/particle 13 900 eV/particle 16 200 eV/particle 16 400 eV/particle 16 900 eV/particle 17 100 eV/particle 33 800 eV/particle 34 300 eV/particle 34 800 eV/particle 35 300 eV/particle 43 800 eV/particle 44 500 eV/particle 45 400 eV/particle 181 444 eV/particle

enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
elektroni

electron shell	2, 8, 18, 32, 32, 11, 2

valence electron	2 ⓘ

konfigurimi i elektronit	[Rn] 5f¹⁴ 6d³ 7s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 5f¹⁴ 6d³ 7s²

oxidation number	5
Elektronegativiteti
Electrophilicity Index
fundamental state of matter

gjendja agregate e materies	Solid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
appearance
Ngjyra	Colorless #d1004f
appearance
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
electrical conductivity
electrical resistivity
Superpërcjellshmëria
Magnetizimi
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
strukturë
Crystal Structure	{ERROR}
lattice constant
Lattice Angles
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
Shpejtësia e zërit
klasifikim
Category	Transition metals, Transition metals
CAS Group	VA
IUPAC Group	VB
Glawe Number
Mendeleev Number	50
Pettifor Number
Geochemical Class
Goldschmidt classification	synthetic

other

Gas Basicity
polarizability	42 ± 4 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
numër kuantik	4F3/2
space group	()

Isotopes of Dubnium

Stable Isotopes	0
Unstable Isotopes	16
Natural Isotopes	0

²⁵⁵Db

Numri i masës	255
numri i neutroneve	150
Relative Atomic Mass	255,106919 ± 0,000304 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	54 ms
Spini	9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1976
parity	+

decay mode	intensitet
SF (spontaneous fission)	67%
α (α emission)

²⁵⁶Db

Numri i masës	256
numri i neutroneve	151
Relative Atomic Mass	256,107674 ± 0,000201 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	1,7 ± 0,4 s
Spini	9
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2001
parity	-

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

²⁵⁷Db

Numri i masës	257
numri i neutroneve	152
Relative Atomic Mass	257,107520042 ± 0,000176741 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	2,3 ± 0,2 s
Spini	9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1985
parity	+

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

²⁵⁸Db

Numri i masës	258
numri i neutroneve	153
Relative Atomic Mass	258,108972995 ± 0,000098613 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	2,17 ± 0,36 s
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1985
parity	-

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

²⁵⁹Db

Numri i masës	259
numri i neutroneve	154
Relative Atomic Mass	259,109491859 ± 0,000060854 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	510 ± 160 ms
Spini	9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2001
parity	+

decay mode	intensitet
α (α emission)	100%

²⁶⁰Db

Numri i masës	260
numri i neutroneve	155
Relative Atomic Mass	260,111297 ± 0,0001 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	1,52 ± 0,13 s
Spini
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1970
parity

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

²⁶¹Db

Numri i masës	261
numri i neutroneve	156
Relative Atomic Mass	261,111979 ± 0,000118 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	4,7 ± 1 s
Spini	9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1970
parity	+

decay mode	intensitet
SF (spontaneous fission)	73%
α (α emission)	27%

²⁶²Db

Numri i masës	262
numri i neutroneve	157
Relative Atomic Mass	262,114067 ± 0,000154 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	34 ± 4 s
Spini
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1971
parity

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

²⁶³Db

Numri i masës	263
numri i neutroneve	158
Relative Atomic Mass	263,114987 ± 0,00018 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	29 ± 9 s
Spini	9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1992
parity	+

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

²⁶⁴Db

Numri i masës	264
numri i neutroneve	159
Relative Atomic Mass	264,117297 ± 0,000253 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity

decay mode	intensitet
α (α emission)

²⁶⁵Db

Numri i masës	265
numri i neutroneve	160
Relative Atomic Mass	265,1185 ± 0,00024 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini	9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity	+

decay mode	intensitet
α (α emission)

²⁶⁶Db

Numri i masës	266
numri i neutroneve	161
Relative Atomic Mass	266,121032 ± 0,000304 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	80 ± 70 m
Spini
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2007
parity

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

²⁶⁷Db

Numri i masës	267
numri i neutroneve	162
Relative Atomic Mass	267,122399 ± 0,000402 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	2 ± 1,1 h
Spini	9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2004
parity	+

decay mode	intensitet
SF (spontaneous fission)	100%

²⁶⁸Db

Numri i masës	268
numri i neutroneve	163
Relative Atomic Mass	268,125669 ± 0,000568 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	29 ± 3 h
Spini
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2004
parity

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

²⁶⁹Db

Numri i masës	269
numri i neutroneve	164
Relative Atomic Mass	269,127911 ± 0,000669 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini	9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity	+

decay mode	intensitet
α (α emission)
SF (spontaneous fission)

²⁷⁰Db

Numri i masës	270
numri i neutroneve	165
Relative Atomic Mass	270,131399 ± 0,000617 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	1,7 ± 1 h
Spini
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2010
parity

decay mode	intensitet
SF (spontaneous fission)	87%
α (α emission)	13%

historia

zbulues	A. Ghiorso, et al
vendndodhja e zbulimit	United States
koha e zbulimit apo shpikjes	1970
Etimologjia	Named after the city of Dubna, the site of the JINR.
pronunciation	HA-ni-em (anglisht)

burim

Abundance
Abundance in Earth's crust
natural abundance (Oqeani)
natural abundance (Trupi i njeriut)	0 %
natural abundance (meteoroid)	0 %
natural abundance (Diell)	0 %
Abundance in Universe	0 %

Nuclear Screening Constants

Dubnium on ChemicalAid

Australian Educational Vocabulary ID	scot/3514
DSSTOX compound identifier	DTXCID801323011
DSSTox substance ID	DTXSID30893063
Den Store Danske ID	dubnium
ECHA Substance Infocard ID	100.126.367
Elhuyar ZTH ID	064402
Encyclopedia of China (Third Edition) ID	185643
Encyclopædia Britannica Online ID	science/dubnium
Freebase ID	/m/0274b33
GND ID	4293095-9
Gran Enciclopèdia Catalana ID	0272492
Great Russian Encyclopedia Online ID	1969523
KBpedia ID	Dubnium
NKCR AUT ID	ph928215
OmegaWiki Defined Meaning	157650
Store norske leksikon ID	dubnium
Treccani ID	dubnio
USGS Thesaurus ID	1442
numri CAS	53850-35-4

Dubnium (Db)

Tipar Fizik

Chemical Property

other

Isotopes of Dubnium

255Db

256Db

257Db

258Db

259Db

260Db

261Db

262Db

263Db

264Db

265Db

266Db

267Db

268Db

269Db

270Db

historia

burim

Nuclear Screening Constants

²⁵⁵Db

²⁵⁶Db

²⁵⁷Db

²⁵⁸Db

²⁵⁹Db

²⁶⁰Db

²⁶¹Db

²⁶²Db

²⁶³Db

²⁶⁴Db

²⁶⁵Db

²⁶⁶Db

²⁶⁷Db

²⁶⁸Db

²⁶⁹Db

²⁷⁰Db