Volfram

Volfram (W)

chemical element with symbol W and atomic number 74
Atomski broj74
Relativna atomska masa183.84
Maseni broj184
Skupina6
Perioda6
Blokd
proton74 p+
neutron110 n0
elektron74 e-
Animated Bohrov model atoma of W (Volfram)

Physical Property

Atomski Radijus
135 pm
Molni volumen
Kovalentni Radijus
137 pm
Metallic Radius
130 pm
Ionski radijus
66 pm
Crystal Radius
80 pm
Van der Waals radius
218 pm
gustoća
19,3 g/cm³
Atomic Radii Of The Elements: Volfram0102030405060708090100110120130140150160170180190200210220pmAtomski RadijusKovalentni RadijusMetallic RadiusVan der Waals radius

Kemijsko Svojstvo

energija
proton affinity
Elektronski afinitet
0,81626 eV/particle
ionization energy
7,86403 eV/particle
ionization energy of W (Volfram)
Toplina isparivanja
824 kJ/mol
toplina taljenja
standard enthalpy of formation
851 kJ/mol
elektron
Elektronska ljuska2, 8, 18, 32, 12, 2
Bohrov model atoma: W (Volfram)
valence electron2
Lewis structure: W (Volfram)
electron configuration[Xe] 4f14 5d4 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d4 6s2
Enhanced Bohrov model atoma of W (Volfram)
Orbital Diagram of W (Volfram)
Oksidacijski broj-4, -2, -1, 0, 1, 2, 3, 4, 5, 6
Elektronegativnost
1.7
Electrophilicity Index
1,336370129915207 eV/particle
fundamental state of matter
agregatno stanjeČvrsto
gaseous state of matter
Vrelište
5.828,15 K
Talište
3.687,15 K
critical pressure
critical temperature
Trojna točka
appearance
boja
Siva
appearancegrayish white, lustrous
Indeks prelamanja
thermodynamic material property
Toplinska vodljivost
Toplinsko istezanje
0,0000045 1/K
molar heat capacity
24,27 J/(mol K)
Specifični toplinski kapacitet
0,132 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
20 MS/m
Električna otpornost i provodnost
0,00000004999999999997 m Ω
Supravodljivost
0,015 K
Magnetizam
typeparamagnetic
Magnetna susceptibilnost (Mass)
0,00000000459 m³/Kg
Magnetna susceptibilnost (Molar)
0,000000000844 m³/mol
Magnetna susceptibilnost (Volume)
0,0000884
magnetic ordering
Curieva temperatura
Néel temperature
struktura
Kristalna strukturaKubna prostorno centrirana (BCC)
lattice constant
3,16 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
Tvrdoća
7,5 MPa
bulk modulus
310 GPa
shear modulus
161 GPa
Youngov modul elastičnosti
411 GPa
Poissonov omjer
0,28
brzina zvuka
5.174 m/s
classification
KategorijaPrijelazni metali, Transition metals
CAS GroupVIA
IUPAC GroupVIB
Glawe Number57
Mendeleev Number53
Pettifor Number56
Geochemical Class
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
68 ± 15 a₀
C6 Dispersion Coefficient
allotrope
Nuklearni udarni presjek
18,4
Neutron Mass Absorption
0,0036
Kvantni brojevi5D0
space group229 (Im_3m)

Isotopes of Tungsten

Stabilni izotopi0
Nestabilni izotopi41
Natural Isotopes5
Isotopic Composition18430.64%18430.64%18628.43%18628.43%18226.50%18226.50%18314.31%18314.31%1800.12%1800.12%

157W

Maseni broj157
neutron number83
Relativna atomska masa
156,978862 ± 0,000429 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
275 ± 40 ms
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma2010
Parnost-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0%

158W

Maseni broj158
neutron number84
Relativna atomska masa
157,974565 ± 0,000322 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,43 ± 0,18 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1981
Parnost+

decay modeintensity
α (α emission)100%

159W

Maseni broj159
neutron number85
Relativna atomska masa
158,972696 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,2 ± 0,7 ms
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1981
Parnost-

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

160W

Maseni broj160
neutron number86
Relativna atomska masa
159,968513946 ± 0,000160828 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
90 ± 5 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1979
Parnost+

decay modeintensity
α (α emission)87%
β+ (β+ decay; β+ = ϵ + e+)

161W

Maseni broj161
neutron number87
Relativna atomska masa
160,967249 ± 0,000215 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
409 ± 16 ms
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1973
Parnost-

decay modeintensity
α (α emission)73%
β+ (β+ decay; β+ = ϵ + e+)27%

162W

Maseni broj162
neutron number88
Relativna atomska masa
161,963500341 ± 0,000018955 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,19 ± 0,12 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1973
Parnost+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)45.2%

163W

Maseni broj163
neutron number89
Relativna atomska masa
162,962524251 ± 0,000062722 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,63 ± 0,09 s
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1973
Parnost-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)14%

164W

Maseni broj164
neutron number90
Relativna atomska masa
163,958952445 ± 0,000010384 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,3 ± 0,2 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1973
Parnost+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)96.2%
α (α emission)3.8%

165W

Maseni broj165
neutron number91
Relativna atomska masa
164,958280663 ± 0,000027649 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,1 ± 0,5 s
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1975
Parnost-

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

166W

Maseni broj166
neutron number92
Relativna atomska masa
165,955031952 ± 0,000010159 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
19,2 ± 0,6 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1975
Parnost+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)99.965%
α (α emission)0.035%

167W

Maseni broj167
neutron number93
Relativna atomska masa
166,95481108 ± 0,000020078 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
19,9 ± 0,5 s
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1985
Parnost-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)99.96%
α (α emission)0.04%

168W

Maseni broj168
neutron number94
Relativna atomska masa
167,951805459 ± 0,000014233 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
50,9 ± 1,9 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1971
Parnost+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.0032%

169W

Maseni broj169
neutron number95
Relativna atomska masa
168,951778689 ± 0,000016571 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
74 ± 6 s
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1985
Parnost-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

170W

Maseni broj170
neutron number96
Relativna atomska masa
169,949231235 ± 0,000014165 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,42 ± 0,04 m
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1971
Parnost+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

171W

Maseni broj171
neutron number97
Relativna atomska masa
170,949451 ± 0,00003 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,38 ± 0,04 m
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1983
Parnost-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

172W

Maseni broj172
neutron number98
Relativna atomska masa
171,947292 ± 0,00003 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,6 ± 0,9 m
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1964
Parnost+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

173W

Maseni broj173
neutron number99
Relativna atomska masa
172,947689 ± 0,00003 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,6 ± 0,2 m
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1963
Parnost-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

174W

Maseni broj174
neutron number100
Relativna atomska masa
173,946079 ± 0,00003 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
33,2 ± 2,1 m
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1964
Parnost+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

175W

Maseni broj175
neutron number101
Relativna atomska masa
174,946717 ± 0,00003 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
35,2 ± 0,6 m
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1963
Parnost-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

176W

Maseni broj176
neutron number102
Relativna atomska masa
175,945634 ± 0,00003 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,5 ± 0,1 h
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1950
Parnost+

decay modeintensity
ϵ (electron capture)100%

177W

Maseni broj177
neutron number103
Relativna atomska masa
176,946643 ± 0,00003 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
132,4 ± 2 m
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1950
Parnost-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

178W

Maseni broj178
neutron number104
Relativna atomska masa
177,945885791 ± 0,000016316 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
21,6 ± 0,3 d
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1950
Parnost+

decay modeintensity
ϵ (electron capture)100%

179W

Maseni broj179
neutron number105
Relativna atomska masa
178,947079378 ± 0,000015644 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
37,05 ± 0,16 m
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1950
Parnost-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

180W

Maseni broj180
neutron number106
Relativna atomska masa
179,946713304 ± 0,000001545 Da
g-factor
0
natural abundance
0,12 ± 0,01
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,59 ± 0,5 Ey
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1937
Parnost+

decay modeintensity
α (α emission)100%
+ (double β+ decay)

181W

Maseni broj181
neutron number107
Relativna atomska masa
180,948218733 ± 0,000001554 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
120,956 ± 0,019 d
spin9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1947
Parnost+

decay modeintensity
ϵ (electron capture)100%

182W

Maseni broj182
neutron number108
Relativna atomska masa
181,948205636 ± 0,000000799 Da
g-factor
0
natural abundance
26,5 ± 0,16
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1930
Parnost+

decay modeintensity
α (α emission)

183W

Maseni broj183
neutron number109
Relativna atomska masa
182,950224416 ± 0,000000798 Da
g-factor
natural abundance
14,31 ± 0,04
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1930
Parnost-

decay modeintensity
α (α emission)

184W

Maseni broj184
neutron number110
Relativna atomska masa
183,95093318 ± 0,000000792 Da
g-factor
0
natural abundance
30,64 ± 0,02
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1930
Parnost+

decay modeintensity
α (α emission)

185W

Maseni broj185
neutron number111
Relativna atomska masa
184,953421206 ± 0,000000793 Da
g-factor
0,362 ± 0,0093333333333333
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
75,1 ± 0,3 d
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1940
Parnost-

decay modeintensity
β (β decay)100%

186W

Maseni broj186
neutron number112
Relativna atomska masa
185,95436514 ± 0,000001302 Da
g-factor
0
natural abundance
28,43 ± 0,19
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1930
Parnost+

decay modeintensity
(double β decay)
α (α emission)

187W

Maseni broj187
neutron number113
Relativna atomska masa
186,957161249 ± 0,000001302 Da
g-factor
0,414 ± 0,01
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
23,809 ± 0,025 h
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1940
Parnost-

decay modeintensity
β (β decay)100%

188W

Maseni broj188
neutron number114
Relativna atomska masa
187,958488325 ± 0,000003316 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
69,77 ± 0,05 d
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1951
Parnost+

decay modeintensity
β (β decay)100%

189W

Maseni broj189
neutron number115
Relativna atomska masa
188,961557 ± 0,000215 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11,6 ± 0,2 m
spin9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1963
Parnost-

decay modeintensity
β (β decay)100%

190W

Maseni broj190
neutron number116
Relativna atomska masa
189,963103542 ± 0,000037993 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
30 ± 1,5 m
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1976
Parnost+

decay modeintensity
β (β decay)100%

191W

Maseni broj191
neutron number117
Relativna atomska masa
190,966531 ± 0,000045 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1999
Parnost-

decay modeintensity
β (β decay)

192W

Maseni broj192
neutron number118
Relativna atomska masa
191,968202 ± 0,000215 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1999
Parnost+

decay modeintensity
β (β decay)

193W

Maseni broj193
neutron number119
Relativna atomska masa
192,971884 ± 0,000215 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2009
Parnost-

decay modeintensity
β (β decay)

194W

Maseni broj194
neutron number120
Relativna atomska masa
193,973795 ± 0,000322 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2008
Parnost+

decay modeintensity
β (β decay)

195W

Maseni broj195
neutron number121
Relativna atomska masa
194,977735 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma2012
Parnost-

decay modeintensity
β (β decay)

196W

Maseni broj196
neutron number122
Relativna atomska masa
195,979882 ± 0,000429 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2012
Parnost+

decay modeintensity
β (β decay)

197W

Maseni broj197
neutron number123
Relativna atomska masa
196,984036 ± 0,000429 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma2012
Parnost-

decay modeintensity
β (β decay)
Wolfram evaporated crystals and 1cm3 cube

povijest

otkrio/izumioFausto and Juan José de Elhuyar
location of discoverySpain
vrijeme otkrića ili izuma1783
EtimologijaSwedish: tung sten (heavy stone): symbol from its German name wolfram.
pronunciationTUNG-sten (engleski)

source

Obilnost
Zastupljenost u Zemljinoj kori
1,25 mg/kg
natural abundance (ocean)
0,0001 mg/L
natural abundance (tijelo)
natural abundance (meteoroid)
0,000012 %
natural abundance (Sunce)
0,0000004 %
Zastupljenost u svemiru
0,00000005 %

Nuclear Screening Constants

1s1.4343
2p4.4258
2s19.3302
3d13.5476
3p21.3824
3s22.13
4d36.8268
4f39.2892
4p34.4516
4s33.4412
5d57.258
5p52.6745
5s50.4585
6s64.1456