Wolframi

Wolframi (W)

chemical element with symbol W and atomic number 74
Atomic Number74
Atomic Weight183.84
mass number184
Group6
Period6
Blockd
protoni74 p+
nyutroni110 n0
elektroni74 e-
Animated Bohr model of W (Wolframi)

Physical Property

Atomic Radius
135 pm
molar volume
Covalent Radius
137 pm
Metallic Radius
130 pm
ionic radius
66 pm
Crystal Radius
80 pm
Van der Waals radius
218 pm
msongamano
19.3 g/cm³
Atomic Radii Of The Elements: Wolframi0102030405060708090100110120130140150160170180190200210220pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

nishati
proton affinity
electron affinity
0.81626 eV/particle
ionization energy
7.86403 eV/particle
ionization energy of W (Wolframi)
enthalpy of vaporization
824 kJ/mol
enthalpy of fusion
standard enthalpy of formation
851 kJ/mol
elektroni
Mzingo elektroni2, 8, 18, 32, 12, 2
Bohr model: W (Wolframi)
valence electron2
Lewis structure: W (Wolframi)
electron configuration[Xe] 4f14 5d4 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d4 6s2
Enhanced Bohr model of W (Wolframi)
Orbital Diagram of W (Wolframi)
oxidation number-4, -2, -1, 0, 1, 2, 3, 4, 5, 6
electronegativity
1.7
Electrophilicity Index
1.336370129915207 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
5,828.15 K
Melting Point
3,687.15 K
critical pressure
critical temperature
Kiwango utatu
appearance
Rangi
Gray
appearancegrayish white, lustrous
refractive index
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
electrical conductivity
20 MS/m
electrical resistivity
0.00000004999999999997 m Ω
superconductivity
0.015 K
Uga sumaku
typeparamagnetic
magnetic susceptibility (Mass)
0.00000000459 m³/Kg
magnetic susceptibility (Molar)
0.000000000844 m³/mol
magnetic susceptibility (Volume)
0.0000884
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal StructureBody Centered Cubic (BCC)
lattice constant
3.16 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
7.5 MPa
bulk modulus
310 GPa
shear modulus
161 GPa
Young's modulus
411 GPa
Poisson's ratio
0.28
speed of sound
5,174 m/s
classification
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
quantum number5D0
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

mass number157
neutron number83
relative atomic mass
156.978862 ± 0.000429 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
275 ± 40 ms
spin7/2
nuclear quadrupole moment
Uvumbuzi2010
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0%

158W

mass number158
neutron number84
relative atomic mass
157.974565 ± 0.000322 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
1.43 ± 0.18 ms
spin0
nuclear quadrupole moment
0
Uvumbuzi1981
parity+

hali ya kuozaintensity
α (α emission)100%

159W

mass number159
neutron number85
relative atomic mass
158.972696 ± 0.000322 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
8.2 ± 0.7 ms
spin7/2
nuclear quadrupole moment
Uvumbuzi1981
parity-

hali ya kuozaintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

160W

mass number160
neutron number86
relative atomic mass
159.968513946 ± 0.000160828 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
90 ± 5 ms
spin0
nuclear quadrupole moment
0
Uvumbuzi1979
parity+

hali ya kuozaintensity
α (α emission)87%
β+ (β+ decay; β+ = ϵ + e+)

161W

mass number161
neutron number87
relative atomic mass
160.967249 ± 0.000215 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
409 ± 16 ms
spin7/2
nuclear quadrupole moment
Uvumbuzi1973
parity-

hali ya kuozaintensity
α (α emission)73%
β+ (β+ decay; β+ = ϵ + e+)27%

162W

mass number162
neutron number88
relative atomic mass
161.963500341 ± 0.000018955 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
1.19 ± 0.12 s
spin0
nuclear quadrupole moment
0
Uvumbuzi1973
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)45.2%

163W

mass number163
neutron number89
relative atomic mass
162.962524251 ± 0.000062722 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
2.63 ± 0.09 s
spin7/2
nuclear quadrupole moment
Uvumbuzi1973
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)14%

164W

mass number164
neutron number90
relative atomic mass
163.958952445 ± 0.000010384 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
6.3 ± 0.2 s
spin0
nuclear quadrupole moment
0
Uvumbuzi1973
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)96.2%
α (α emission)3.8%

165W

mass number165
neutron number91
relative atomic mass
164.958280663 ± 0.000027649 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
5.1 ± 0.5 s
spin5/2
nuclear quadrupole moment
Uvumbuzi1975
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)

166W

mass number166
neutron number92
relative atomic mass
165.955031952 ± 0.000010159 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
19.2 ± 0.6 s
spin0
nuclear quadrupole moment
0
Uvumbuzi1975
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)99.965%
α (α emission)0.035%

167W

mass number167
neutron number93
relative atomic mass
166.95481108 ± 0.000020078 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
19.9 ± 0.5 s
spin5/2
nuclear quadrupole moment
Uvumbuzi1985
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)99.96%
α (α emission)0.04%

168W

mass number168
neutron number94
relative atomic mass
167.951805459 ± 0.000014233 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
50.9 ± 1.9 s
spin0
nuclear quadrupole moment
0
Uvumbuzi1971
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.0032%

169W

mass number169
neutron number95
relative atomic mass
168.951778689 ± 0.000016571 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
74 ± 6 s
spin5/2
nuclear quadrupole moment
Uvumbuzi1985
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

170W

mass number170
neutron number96
relative atomic mass
169.949231235 ± 0.000014165 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
2.42 ± 0.04 m
spin0
nuclear quadrupole moment
0
Uvumbuzi1971
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

171W

mass number171
neutron number97
relative atomic mass
170.949451 ± 0.00003 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
2.38 ± 0.04 m
spin5/2
nuclear quadrupole moment
Uvumbuzi1983
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

172W

mass number172
neutron number98
relative atomic mass
171.947292 ± 0.00003 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
6.6 ± 0.9 m
spin0
nuclear quadrupole moment
0
Uvumbuzi1964
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

173W

mass number173
neutron number99
relative atomic mass
172.947689 ± 0.00003 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
7.6 ± 0.2 m
spin5/2
nuclear quadrupole moment
Uvumbuzi1963
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

174W

mass number174
neutron number100
relative atomic mass
173.946079 ± 0.00003 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
33.2 ± 2.1 m
spin0
nuclear quadrupole moment
0
Uvumbuzi1964
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

175W

mass number175
neutron number101
relative atomic mass
174.946717 ± 0.00003 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
35.2 ± 0.6 m
spin1/2
nuclear quadrupole moment
0
Uvumbuzi1963
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

176W

mass number176
neutron number102
relative atomic mass
175.945634 ± 0.00003 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
2.5 ± 0.1 h
spin0
nuclear quadrupole moment
0
Uvumbuzi1950
parity+

hali ya kuozaintensity
ϵ (electron capture)100%

177W

mass number177
neutron number103
relative atomic mass
176.946643 ± 0.00003 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
132.4 ± 2 m
spin1/2
nuclear quadrupole moment
0
Uvumbuzi1950
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

178W

mass number178
neutron number104
relative atomic mass
177.945885791 ± 0.000016316 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
21.6 ± 0.3 d
spin0
nuclear quadrupole moment
0
Uvumbuzi1950
parity+

hali ya kuozaintensity
ϵ (electron capture)100%

179W

mass number179
neutron number105
relative atomic mass
178.947079378 ± 0.000015644 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
37.05 ± 0.16 m
spin7/2
nuclear quadrupole moment
Uvumbuzi1950
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%

180W

mass number180
neutron number106
relative atomic mass
179.946713304 ± 0.000001545 Da
g-factor
0
natural abundance
0.12 ± 0.01
Unururifu☢️ radioactive element
Nusumaisha
1.59 ± 0.5 Ey
spin0
nuclear quadrupole moment
0
Uvumbuzi1937
parity+

hali ya kuozaintensity
α (α emission)100%
+ (double β+ decay)

181W

mass number181
neutron number107
relative atomic mass
180.948218733 ± 0.000001554 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
120.956 ± 0.019 d
spin9/2
nuclear quadrupole moment
Uvumbuzi1947
parity+

hali ya kuozaintensity
ϵ (electron capture)100%

182W

mass number182
neutron number108
relative atomic mass
181.948205636 ± 0.000000799 Da
g-factor
0
natural abundance
26.5 ± 0.16
Unururifu☢️ radioactive element
Nusumaisha
spin0
nuclear quadrupole moment
0
Uvumbuzi1930
parity+

hali ya kuozaintensity
α (α emission)

183W

mass number183
neutron number109
relative atomic mass
182.950224416 ± 0.000000798 Da
g-factor
natural abundance
14.31 ± 0.04
Unururifu☢️ radioactive element
Nusumaisha
spin1/2
nuclear quadrupole moment
0
Uvumbuzi1930
parity-

hali ya kuozaintensity
α (α emission)

184W

mass number184
neutron number110
relative atomic mass
183.95093318 ± 0.000000792 Da
g-factor
0
natural abundance
30.64 ± 0.02
Unururifu☢️ radioactive element
Nusumaisha
spin0
nuclear quadrupole moment
0
Uvumbuzi1930
parity+

hali ya kuozaintensity
α (α emission)

185W

mass number185
neutron number111
relative atomic mass
184.953421206 ± 0.000000793 Da
g-factor
0.362 ± 0.0093333333333333
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
75.1 ± 0.3 d
spin3/2
nuclear quadrupole moment
Uvumbuzi1940
parity-

hali ya kuozaintensity
β (β decay)100%

186W

mass number186
neutron number112
relative atomic mass
185.95436514 ± 0.000001302 Da
g-factor
0
natural abundance
28.43 ± 0.19
Unururifu☢️ radioactive element
Nusumaisha
spin0
nuclear quadrupole moment
0
Uvumbuzi1930
parity+

hali ya kuozaintensity
(double β decay)
α (α emission)

187W

mass number187
neutron number113
relative atomic mass
186.957161249 ± 0.000001302 Da
g-factor
0.414 ± 0.01
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
23.809 ± 0.025 h
spin3/2
nuclear quadrupole moment
Uvumbuzi1940
parity-

hali ya kuozaintensity
β (β decay)100%

188W

mass number188
neutron number114
relative atomic mass
187.958488325 ± 0.000003316 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
69.77 ± 0.05 d
spin0
nuclear quadrupole moment
0
Uvumbuzi1951
parity+

hali ya kuozaintensity
β (β decay)100%

189W

mass number189
neutron number115
relative atomic mass
188.961557 ± 0.000215 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
11.6 ± 0.2 m
spin9/2
nuclear quadrupole moment
Uvumbuzi1963
parity-

hali ya kuozaintensity
β (β decay)100%

190W

mass number190
neutron number116
relative atomic mass
189.963103542 ± 0.000037993 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
30 ± 1.5 m
spin0
nuclear quadrupole moment
0
Uvumbuzi1976
parity+

hali ya kuozaintensity
β (β decay)100%

191W

mass number191
neutron number117
relative atomic mass
190.966531 ± 0.000045 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin3/2
nuclear quadrupole moment
Uvumbuzi1999
parity-

hali ya kuozaintensity
β (β decay)

192W

mass number192
neutron number118
relative atomic mass
191.968202 ± 0.000215 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin0
nuclear quadrupole moment
0
Uvumbuzi1999
parity+

hali ya kuozaintensity
β (β decay)

193W

mass number193
neutron number119
relative atomic mass
192.971884 ± 0.000215 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin1/2
nuclear quadrupole moment
0
Uvumbuzi2009
parity-

hali ya kuozaintensity
β (β decay)

194W

mass number194
neutron number120
relative atomic mass
193.973795 ± 0.000322 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin0
nuclear quadrupole moment
0
Uvumbuzi2008
parity+

hali ya kuozaintensity
β (β decay)

195W

mass number195
neutron number121
relative atomic mass
194.977735 ± 0.000322 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin3/2
nuclear quadrupole moment
Uvumbuzi2012
parity-

hali ya kuozaintensity
β (β decay)

196W

mass number196
neutron number122
relative atomic mass
195.979882 ± 0.000429 Da
g-factor
0
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin0
nuclear quadrupole moment
0
Uvumbuzi2012
parity+

hali ya kuozaintensity
β (β decay)

197W

mass number197
neutron number123
relative atomic mass
196.984036 ± 0.000429 Da
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin5/2
nuclear quadrupole moment
Uvumbuzi2012
parity-

hali ya kuozaintensity
β (β decay)
Wolfram evaporated crystals and 1cm3 cube

historia

mgunduzi au mvumbuziFausto and Juan José de Elhuyar
location of discoverySpain
Uvumbuzi1783
EtimolojiaSwedish: tung sten (heavy stone): symbol from its German name wolfram.
pronunciationTUNG-sten (Kiingereza)

source

Abundance
Abundance in Earth's crust
1.25 mg/kg
natural abundance (Bahari)
0.0001 mg/L
natural abundance (Mwili)
natural abundance (Kimondo)
0.000012 %
natural abundance (Jua)
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