Volfram

Volfram (W)

hemijski element sa simbolom W i atomskim brojem 74
Atomic Number74
Atomic Weight183.84
Maseni broj184
Group6
Period6
Blockd
Proton74 p+
Neutron110 n0
Elektron74 e-
Animated Bohrov model atoma of W (Volfram)

Physical Property

Atomski Radijus
135 pm
Molarni volumen
covalent radius
137 pm
Metallic Radius
130 pm
Ionski radijus
66 pm
Crystal Radius
80 pm
Van der Waalsov radijus
218 pm
gustoća
19,3 g/cm³
Atomic Radii Of The Elements: Volfram0102030405060708090100110120130140150160170180190200210220pmAtomski RadijusCovalent RadiusMetallic RadiusVan der Waalsov radijus

Chemical Property

energija
proton affinity
electron affinity
0,81626 eV/particle
ionization energy
7,86403 eV/particle
ionization energy of W (Volfram)
Toplota isparavanja
824 kJ/mol
toplota topljenja
standard enthalpy of formation
851 kJ/mol
Elektron
electron shell2, 8, 18, 32, 12, 2
Bohrov model atoma: W (Volfram)
Valentni elektron2
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)
oksidacijsko stanje-4, -2, -1, 0, 1, 2, 3, 4, 5, 6
Elektronegativnost
1.7
Electrophilicity Index
1,336370129915207 eV/particle
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
5.828,15 K
Melting Point
3.687,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Gray
appearancegrayish white, lustrous
Indeks prelamanja
thermodynamic material property
Thermal Conductivity
thermal expansion
0,0000045 1/K
molar heat capacity
24,27 J/(mol K)
Specific Heat Capacity
0,132 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
Specifična električna provodljivost
20 MS/m
electrical resistivity
0,00000004999999999997 m Ω
Superprovodljivost
0,015 K
Magnetizam
typeparamagnetic
magnetic susceptibility (Mass)
0,00000000459 m³/Kg
magnetic susceptibility (Molar)
0,000000000844 m³/mol
magnetic susceptibility (Volume)
0,0000884
magnetic ordering
Kirijeva tačka
Néel temperature
struktura
Crystal StructureBody Centered Cubic (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
Young's modulus
411 GPa
Poisson's ratio
0,28
Brzina zvuka
5.174 m/s
klasifikacija
CategoryTransition metals, 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
Neutron cross section
18,4
Neutron Mass Absorption
0,0036
Kvantni brojevi5D0
space group229 (Im_3m)

Isotopes of Tungsten

Stable Isotopes0
Unstable Isotopes41
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
broj neutrona83
relative atomic mass
156,978862 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
275 ± 40 ms
spin7/2
nuclear quadrupole moment
datum otkrića2010
parity-

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

158W

Maseni broj158
broj neutrona84
relative atomic mass
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
datum otkrića1981
parity+

decay modeintensity
α (α emission)100%

159W

Maseni broj159
broj neutrona85
relative atomic mass
158,972696 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,2 ± 0,7 ms
spin7/2
nuclear quadrupole moment
datum otkrića1981
parity-

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

160W

Maseni broj160
broj neutrona86
relative atomic mass
159,968513946 ± 0,000160828 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
90 ± 5 ms
spin0
nuclear quadrupole moment
0
datum otkrića1979
parity+

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

161W

Maseni broj161
broj neutrona87
relative atomic mass
160,967249 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
409 ± 16 ms
spin7/2
nuclear quadrupole moment
datum otkrića1973
parity-

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

162W

Maseni broj162
broj neutrona88
relative atomic mass
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
datum otkrića1973
parity+

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

163W

Maseni broj163
broj neutrona89
relative atomic mass
162,962524251 ± 0,000062722 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,63 ± 0,09 s
spin7/2
nuclear quadrupole moment
datum otkrića1973
parity-

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

164W

Maseni broj164
broj neutrona90
relative atomic mass
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
datum otkrića1973
parity+

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

165W

Maseni broj165
broj neutrona91
relative atomic mass
164,958280663 ± 0,000027649 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,1 ± 0,5 s
spin5/2
nuclear quadrupole moment
datum otkrića1975
parity-

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

166W

Maseni broj166
broj neutrona92
relative atomic mass
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
datum otkrića1975
parity+

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

167W

Maseni broj167
broj neutrona93
relative atomic mass
166,95481108 ± 0,000020078 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
19,9 ± 0,5 s
spin5/2
nuclear quadrupole moment
datum otkrića1985
parity-

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

168W

Maseni broj168
broj neutrona94
relative atomic mass
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
datum otkrića1971
parity+

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

169W

Maseni broj169
broj neutrona95
relative atomic mass
168,951778689 ± 0,000016571 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
74 ± 6 s
spin5/2
nuclear quadrupole moment
datum otkrića1985
parity-

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

170W

Maseni broj170
broj neutrona96
relative atomic mass
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
datum otkrića1971
parity+

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

171W

Maseni broj171
broj neutrona97
relative atomic mass
170,949451 ± 0,00003 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,38 ± 0,04 m
spin5/2
nuclear quadrupole moment
datum otkrića1983
parity-

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

172W

Maseni broj172
broj neutrona98
relative atomic mass
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
datum otkrića1964
parity+

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

173W

Maseni broj173
broj neutrona99
relative atomic mass
172,947689 ± 0,00003 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,6 ± 0,2 m
spin5/2
nuclear quadrupole moment
datum otkrića1963
parity-

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

174W

Maseni broj174
broj neutrona100
relative atomic mass
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
datum otkrića1964
parity+

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

175W

Maseni broj175
broj neutrona101
relative atomic mass
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
datum otkrića1963
parity-

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

176W

Maseni broj176
broj neutrona102
relative atomic mass
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
datum otkrića1950
parity+

decay modeintensity
ϵ (electron capture)100%

177W

Maseni broj177
broj neutrona103
relative atomic mass
176,946643 ± 0,00003 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
132,4 ± 2 m
spin1/2
nuclear quadrupole moment
0
datum otkrića1950
parity-

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

178W

Maseni broj178
broj neutrona104
relative atomic mass
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
datum otkrića1950
parity+

decay modeintensity
ϵ (electron capture)100%

179W

Maseni broj179
broj neutrona105
relative atomic mass
178,947079378 ± 0,000015644 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
37,05 ± 0,16 m
spin7/2
nuclear quadrupole moment
datum otkrića1950
parity-

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

180W

Maseni broj180
broj neutrona106
relative atomic mass
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
datum otkrića1937
parity+

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

181W

Maseni broj181
broj neutrona107
relative atomic mass
180,948218733 ± 0,000001554 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
120,956 ± 0,019 d
spin9/2
nuclear quadrupole moment
datum otkrića1947
parity+

decay modeintensity
ϵ (electron capture)100%

182W

Maseni broj182
broj neutrona108
relative atomic mass
181,948205636 ± 0,000000799 Da
g-factor
0
natural abundance
26,5 ± 0,16
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića1930
parity+

decay modeintensity
α (α emission)

183W

Maseni broj183
broj neutrona109
relative atomic mass
182,950224416 ± 0,000000798 Da
g-factor
natural abundance
14,31 ± 0,04
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
datum otkrića1930
parity-

decay modeintensity
α (α emission)

184W

Maseni broj184
broj neutrona110
relative atomic mass
183,95093318 ± 0,000000792 Da
g-factor
0
natural abundance
30,64 ± 0,02
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića1930
parity+

decay modeintensity
α (α emission)

185W

Maseni broj185
broj neutrona111
relative atomic mass
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
datum otkrića1940
parity-

decay modeintensity
β (β decay)100%

186W

Maseni broj186
broj neutrona112
relative atomic mass
185,95436514 ± 0,000001302 Da
g-factor
0
natural abundance
28,43 ± 0,19
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića1930
parity+

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

187W

Maseni broj187
broj neutrona113
relative atomic mass
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
datum otkrića1940
parity-

decay modeintensity
β (β decay)100%

188W

Maseni broj188
broj neutrona114
relative atomic mass
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
datum otkrića1951
parity+

decay modeintensity
β (β decay)100%

189W

Maseni broj189
broj neutrona115
relative atomic mass
188,961557 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11,6 ± 0,2 m
spin9/2
nuclear quadrupole moment
datum otkrića1963
parity-

decay modeintensity
β (β decay)100%

190W

Maseni broj190
broj neutrona116
relative atomic mass
189,963103542 ± 0,000037993 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
30 ± 1,5 m
spin0
nuclear quadrupole moment
0
datum otkrića1976
parity+

decay modeintensity
β (β decay)100%

191W

Maseni broj191
broj neutrona117
relative atomic mass
190,966531 ± 0,000045 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
datum otkrića1999
parity-

decay modeintensity
β (β decay)

192W

Maseni broj192
broj neutrona118
relative atomic mass
191,968202 ± 0,000215 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića1999
parity+

decay modeintensity
β (β decay)

193W

Maseni broj193
broj neutrona119
relative atomic mass
192,971884 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
datum otkrića2009
parity-

decay modeintensity
β (β decay)

194W

Maseni broj194
broj neutrona120
relative atomic mass
193,973795 ± 0,000322 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića2008
parity+

decay modeintensity
β (β decay)

195W

Maseni broj195
broj neutrona121
relative atomic mass
194,977735 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
datum otkrića2012
parity-

decay modeintensity
β (β decay)

196W

Maseni broj196
broj neutrona122
relative atomic mass
195,979882 ± 0,000429 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića2012
parity+

decay modeintensity
β (β decay)

197W

Maseni broj197
broj neutrona123
relative atomic mass
196,984036 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin5/2
nuclear quadrupole moment
datum otkrića2012
parity-

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

historija

otkrivač ili izumiteljFausto and Juan José de Elhuyar
mjesto otkrićaSpain
datum otkrića1783
EtimologijaSwedish: tung sten (heavy stone): symbol from its German name wolfram.
pronunciationTUNG-sten (engleski)

izvor

Abundance
Abundance in Earth's crust
1,25 mg/kg
natural abundance (okean)
0,0001 mg/L
natural abundance (ljudsko tijelo)
natural abundance (Meteoroidi)
0,000012 %
natural abundance (Sunce)
0,0000004 %
Abundance in Universe
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