Hahnium (Db)

chemical element with the atomic number of 105

Atomic Number	105
Atomic Weight	268
Nombor jisim	255

Group	5
Period	7
Block	d

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

Sifat Fizikal

Jejari Atom
molar volume
Jejari kovalen	149 pm 136 pm 126 pm
Metallic Radius
ionic radius
Crystal Radius
Jejari van der Waals
ketumpatan	29.3 g/cm³

Sifat Kimia

tenaga

proton affinity
Pertalian elektron
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

Entalpi pengewapan
entalpi pelakuran
standard enthalpy of formation
Elektron

Petala elektron	2, 8, 18, 32, 32, 11, 2

Elektron valens	2 ⓘ

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

Keadaan pengoksidaan	5
Keelektronegatifan
Electrophilicity Index
keadaan jirim asas

fasa jirim	Solid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
rupa
warna	Colorless #d1004f
rupa
indeks biasan
sifat bahan
Thermal Conductivity
Pengembangan terma
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
Kekonduksian elektrik
Kerintangan dan kekonduksian elektrik
Kesuperkonduksian
kemagnetan
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Suhu Curie
Néel temperature
struktur
Crystal Structure	()
lattice constant
Lattice Angles
mechanical property
hardness
Modulus pukal
shear modulus
Young's modulus
Nisbah Poisson
Kelajuan bunyi
pengelasan
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
Nombor kuantum	4F3/2
space group	()

Isotopes of Dubnium

Stable Isotopes	0
Unstable Isotopes	16
Natural Isotopes	0

²⁵⁵Db

Nombor jisim	255
nombor neutron	150
Jisim Atom Relatif	255.106919 ± 0.000304 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	54 ms
Spin	9/2
nuclear quadrupole moment
tarikh penemuan	1976
parity	+

decay mode	Keamatan (fizik)
SF (spontaneous fission)	67%
α (α emission)

²⁵⁶Db

Nombor jisim	256
nombor neutron	151
Jisim Atom Relatif	256.107674 ± 0.000201 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	1.7 ± 0.4 s
Spin	9
nuclear quadrupole moment
tarikh penemuan	2001
parity	-

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

²⁵⁷Db

Nombor jisim	257
nombor neutron	152
Jisim Atom Relatif	257.107520042 ± 0.000176741 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	2.3 ± 0.2 s
Spin	9/2
nuclear quadrupole moment
tarikh penemuan	1985
parity	+

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

²⁵⁸Db

Nombor jisim	258
nombor neutron	153
Jisim Atom Relatif	258.108972995 ± 0.000098613 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	2.17 ± 0.36 s
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1985
parity	-

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

²⁵⁹Db

Nombor jisim	259
nombor neutron	154
Jisim Atom Relatif	259.109491859 ± 0.000060854 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	510 ± 160 ms
Spin	9/2
nuclear quadrupole moment
tarikh penemuan	2001
parity	+

decay mode	Keamatan (fizik)
α (α emission)	100%

²⁶⁰Db

Nombor jisim	260
nombor neutron	155
Jisim Atom Relatif	260.111297 ± 0.0001 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	1.52 ± 0.13 s
Spin
nuclear quadrupole moment
tarikh penemuan	1970
parity

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

²⁶¹Db

Nombor jisim	261
nombor neutron	156
Jisim Atom Relatif	261.111979 ± 0.000118 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	4.7 ± 1 s
Spin	9/2
nuclear quadrupole moment
tarikh penemuan	1970
parity	+

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

²⁶²Db

Nombor jisim	262
nombor neutron	157
Jisim Atom Relatif	262.114067 ± 0.000154 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	34 ± 4 s
Spin
nuclear quadrupole moment
tarikh penemuan	1971
parity

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

²⁶³Db

Nombor jisim	263
nombor neutron	158
Jisim Atom Relatif	263.114987 ± 0.00018 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	29 ± 9 s
Spin	9/2
nuclear quadrupole moment
tarikh penemuan	1992
parity	+

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

²⁶⁴Db

Nombor jisim	264
nombor neutron	159
Jisim Atom Relatif	264.117297 ± 0.000253 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin
nuclear quadrupole moment
tarikh penemuan
parity

decay mode	Keamatan (fizik)
α (α emission)

²⁶⁵Db

Nombor jisim	265
nombor neutron	160
Jisim Atom Relatif	265.1185 ± 0.00024 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	9/2
nuclear quadrupole moment
tarikh penemuan
parity	+

decay mode	Keamatan (fizik)
α (α emission)

²⁶⁶Db

Nombor jisim	266
nombor neutron	161
Jisim Atom Relatif	266.121032 ± 0.000304 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	80 ± 70 m
Spin
nuclear quadrupole moment
tarikh penemuan	2007
parity

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

²⁶⁷Db

Nombor jisim	267
nombor neutron	162
Jisim Atom Relatif	267.122399 ± 0.000402 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	2 ± 1.1 h
Spin	9/2
nuclear quadrupole moment
tarikh penemuan	2004
parity	+

decay mode	Keamatan (fizik)
SF (spontaneous fission)	100%

²⁶⁸Db

Nombor jisim	268
nombor neutron	163
Jisim Atom Relatif	268.125669 ± 0.000568 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	29 ± 3 h
Spin
nuclear quadrupole moment
tarikh penemuan	2004
parity

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

²⁶⁹Db

Nombor jisim	269
nombor neutron	164
Jisim Atom Relatif	269.127911 ± 0.000669 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	9/2
nuclear quadrupole moment
tarikh penemuan
parity	+

decay mode	Keamatan (fizik)
α (α emission)
SF (spontaneous fission)

²⁷⁰Db

Nombor jisim	270
nombor neutron	165
Jisim Atom Relatif	270.131399 ± 0.000617 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	1.7 ± 1 h
Spin
nuclear quadrupole moment
tarikh penemuan	2010
parity

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

sejarah

penemu atau pereka	A. Ghiorso, et al
tempat penemuan	United States
tarikh penemuan	1970
Etimologi	Named after the city of Dubna, the site of the JINR.
sebutan	HA-ni-em (Inggeris)

sumber

Abundance
Abundance in Earth's crust
natural abundance (lautan)
natural abundance (Tubuh manusia)	0 %
natural abundance (Meteoroid)	0 %
natural abundance (Matahari)	0 %
Abundance in Universe	0 %

Nuclear Screening Constants

Hahnium on ChemicalAid

DSSTOX compound identifier	DTXCID801323011
ECHA Substance Infocard ID	100.126.367
Encyclopedia of China (Third Edition) ID	185643
ID Den Store Danske	dubnium
ID Elhuyar ZTH	064402
ID Ensiklopedia Besar Rusia dalam talian	1969523
ID Ensiklopedia Britannica Dalam Talian	science/dubnium
ID Freebase	/m/0274b33
ID GND	4293095-9
ID Gran Enciclopèdia Catalana	0272492
ID KBpedia	Dubnium
ID NKCR AUT	ph928215
ID Perbendaharaan Kata Pendidikan Australia	scot/3514
ID Store norske leksikon	dubnium
ID Treccani	dubnio
ID bahan DSSTox	DTXSID30893063
Maksud Tertakrif OmegaWiki	157650
USGS Thesaurus ID	1442
nombor pendaftaran CAS	53850-35-4

Hahnium (Db)

Sifat Fizikal

Sifat Kimia

other

Isotopes of Dubnium

255Db

256Db

257Db

258Db

259Db

260Db

261Db

262Db

263Db

264Db

265Db

266Db

267Db

268Db

269Db

270Db

sejarah

sumber

Nuclear Screening Constants

²⁵⁵Db

²⁵⁶Db

²⁵⁷Db

²⁵⁸Db

²⁵⁹Db

²⁶⁰Db

²⁶¹Db

²⁶²Db

²⁶³Db

²⁶⁴Db

²⁶⁵Db

²⁶⁶Db

²⁶⁷Db

²⁶⁸Db

²⁶⁹Db

²⁷⁰Db