Dubnij (Db)

chemical element with the atomic number of 105

Atomski broj	105
Relativna atomska masa	268
Maseni broj	255

Skupina	5
Perioda	7
Blok	d

proton	105 p⁺
neutron	150 n⁰
elektron	105 e^-

Animated Bohrov model atoma of Db (Dubnij)

Physical Property

Atomski Radijus
Molni volumen
Kovalentni Radijus	149 pm 136 pm 126 pm
Metallic Radius
Ionski radijus
Crystal Radius
Van der Waals radius
gustoća	29,3 g/cm³

Kemijsko Svojstvo

energija

proton affinity
Elektronski afinitet
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

Toplina isparivanja
toplina taljenja
standard enthalpy of formation
elektron

Elektronska ljuska	2, 8, 18, 32, 32, 11, 2

valence electron	2 ⓘ

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

Oksidacijski broj	5
Elektronegativnost
Electrophilicity Index
fundamental state of matter

agregatno stanje	Čvrsto
gaseous state of matter
Vrelište
Talište
critical pressure
critical temperature
Trojna točka
appearance
boja	Bezbojan #d1004f
appearance
Indeks prelamanja
thermodynamic material property
Toplinska vodljivost
Toplinsko istezanje
molar heat capacity
Specifični toplinski kapacitet
heat capacity ratio
electrical properties
type
electrical conductivity
Električna otpornost i provodnost
Supravodljivost
Magnetizam
type
Magnetna susceptibilnost (Mass)
Magnetna susceptibilnost (Molar)
Magnetna susceptibilnost (Volume)
magnetic ordering
Curieva temperatura
Néel temperature
struktura
Kristalna struktura	()
lattice constant
Lattice Angles
mechanical property
Tvrdoća
bulk modulus
shear modulus
Youngov modul elastičnosti
Poissonov omjer
brzina zvuka
classification
Kategorija	Prijelazni metali, 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
Nuklearni udarni presjek
Neutron Mass Absorption
Kvantni brojevi	4F3/2
space group	()

Isotopes of Dubnium

Stabilni izotopi	0
Nestabilni izotopi	16
Natural Isotopes	0

²⁵⁵Db

Maseni broj	255
neutron number	150
Relativna Atomska Masa	255,106919 ± 0,000304 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	54 ms
spin	9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1976
Parnost	+

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

²⁵⁶Db

Maseni broj	256
neutron number	151
Relativna Atomska Masa	256,107674 ± 0,000201 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,7 ± 0,4 s
spin	9
nuclear quadrupole moment
vrijeme otkrića ili izuma	2001
Parnost	-

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

²⁵⁷Db

Maseni broj	257
neutron number	152
Relativna Atomska Masa	257,107520042 ± 0,000176741 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2,3 ± 0,2 s
spin	9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1985
Parnost	+

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

²⁵⁸Db

Maseni broj	258
neutron number	153
Relativna Atomska Masa	258,108972995 ± 0,000098613 Da
g-factor	0
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2,17 ± 0,36 s
spin	0
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	1985
Parnost	-

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

²⁵⁹Db

Maseni broj	259
neutron number	154
Relativna Atomska Masa	259,109491859 ± 0,000060854 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	510 ± 160 ms
spin	9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	2001
Parnost	+

decay mode	intensity
α (α emission)	100%

²⁶⁰Db

Maseni broj	260
neutron number	155
Relativna Atomska Masa	260,111297 ± 0,0001 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,52 ± 0,13 s
spin
nuclear quadrupole moment
vrijeme otkrića ili izuma	1970
Parnost

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

²⁶¹Db

Maseni broj	261
neutron number	156
Relativna Atomska Masa	261,111979 ± 0,000118 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	4,7 ± 1 s
spin	9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1970
Parnost	+

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

²⁶²Db

Maseni broj	262
neutron number	157
Relativna Atomska Masa	262,114067 ± 0,000154 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	34 ± 4 s
spin
nuclear quadrupole moment
vrijeme otkrića ili izuma	1971
Parnost

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

²⁶³Db

Maseni broj	263
neutron number	158
Relativna Atomska Masa	263,114987 ± 0,00018 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	29 ± 9 s
spin	9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1992
Parnost	+

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

²⁶⁴Db

Maseni broj	264
neutron number	159
Relativna Atomska Masa	264,117297 ± 0,000253 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost

decay mode	intensity
α (α emission)

²⁶⁵Db

Maseni broj	265
neutron number	160
Relativna Atomska Masa	265,1185 ± 0,00024 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost	+

decay mode	intensity
α (α emission)

²⁶⁶Db

Maseni broj	266
neutron number	161
Relativna Atomska Masa	266,121032 ± 0,000304 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	80 ± 70 m
spin
nuclear quadrupole moment
vrijeme otkrića ili izuma	2007
Parnost

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

²⁶⁷Db

Maseni broj	267
neutron number	162
Relativna Atomska Masa	267,122399 ± 0,000402 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2 ± 1,1 h
spin	9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	2004
Parnost	+

decay mode	intensity
SF (spontaneous fission)	100%

²⁶⁸Db

Maseni broj	268
neutron number	163
Relativna Atomska Masa	268,125669 ± 0,000568 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	29 ± 3 h
spin
nuclear quadrupole moment
vrijeme otkrića ili izuma	2004
Parnost

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

²⁶⁹Db

Maseni broj	269
neutron number	164
Relativna Atomska Masa	269,127911 ± 0,000669 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost	+

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

²⁷⁰Db

Maseni broj	270
neutron number	165
Relativna Atomska Masa	270,131399 ± 0,000617 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,7 ± 1 h
spin
nuclear quadrupole moment
vrijeme otkrića ili izuma	2010
Parnost

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

povijest

otkrio/izumio	A. Ghiorso, et al
location of discovery	United States
vrijeme otkrića ili izuma	1970
Etimologija	Named after the city of Dubna, the site of the JINR.
pronunciation	HA-ni-em (engleski)

source

Obilnost
Zastupljenost u Zemljinoj kori
natural abundance (ocean)
natural abundance (tijelo)	0 %
natural abundance (meteoroid)	0 %
natural abundance (Sunce)	0 %
Zastupljenost u svemiru	0 %

Nuclear Screening Constants

Dubnij on ChemicalAid

Australian Educational Vocabulary ID	scot/3514
CAS registarski broj	53850-35-4
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
Freebase ID	/m/0274b33
GND identifikator	4293095-9
Gran Enciclopèdia Catalana ID	0272492
Great Russian Encyclopedia Online ID	1969523
ID oznaka u mrežnoj enciklopediji Britannici	science/dubnium
KBpedia ID	Dubnium
NKCR broj	ph928215
Store norske leksikon ID	dubnium
Treccani ID	dubnio
USGS Thesaurus ID	1442
značenje prema OmegaWiki	157650

Dubnij (Db)

Physical Property

Kemijsko Svojstvo

other

Isotopes of Dubnium

255Db

256Db

257Db

258Db

259Db

260Db

261Db

262Db

263Db

264Db

265Db

266Db

267Db

268Db

269Db

270Db

povijest

source

Nuclear Screening Constants

²⁵⁵Db

²⁵⁶Db

²⁵⁷Db

²⁵⁸Db

²⁵⁹Db

²⁶⁰Db

²⁶¹Db

²⁶²Db

²⁶³Db

²⁶⁴Db

²⁶⁵Db

²⁶⁶Db

²⁶⁷Db

²⁶⁸Db

²⁶⁹Db

²⁷⁰Db