Tantalum

Tantalum (Ta)

chemical element with the atomic number of 73
Atomic Number73
Atomic Weight180.94788
Nombor jisim181
Group5
Period6
Blockd
proton73 p+
neutron108 n0
Elektron73 e-
Animated Model Bohr of Ta (Tantalum)

Sifat Fizikal

Jejari Atom
145 pm
molar volume
Jejari kovalen
146 pm
Metallic Radius
134 pm
ionic radius
72 pm
Crystal Radius
86 pm
Jejari van der Waals
222 pm
ketumpatan
16.4 g/cm³
Atomic Radii Of The Elements: Tantalum0102030405060708090100110120130140150160170180190200210220230pmJejari AtomJejari KovalenMetallic RadiusJejari van der Waals

Sifat Kimia

tenaga
proton affinity
Pertalian elektron
ionization energy
7.54957 eV/particle
ionization energy of Ta (Tantalum)
Entalpi pengewapan
758 kJ/mol
entalpi pelakuran
24.7 kJ/mol
standard enthalpy of formation
782 kJ/mol
Elektron
Petala elektron2, 8, 18, 32, 11, 2
Model Bohr: Ta (Tantalum)
Elektron valens2
Teori ion Lewis: Ta (Tantalum)
tatarajah elektron[Xe] 4f14 5d3 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d3 6s2
Enhanced Model Bohr of Ta (Tantalum)
Orbital Diagram of Ta (Tantalum)
Keadaan pengoksidaan-3, -1, 0, 1, 2, 3, 4, 5
Keelektronegatifan
1.5
Electrophilicity Index
1.0716190618855992 eV/particle
keadaan jirim asas
fasa jirimSolid
gaseous state of matter
Boiling Point
5,728.15 K
Melting Point
3,290.15 K
critical pressure
critical temperature
triple point
rupa
warna
Gray
rupagray blue
indeks biasan
sifat bahan
Thermal Conductivity
57.5 W/(m K)
Pengembangan terma
0.0000063 1/K
molar heat capacity
25.36 J/(mol K)
Specific Heat Capacity
heat capacity ratio
electrical properties
typeConductor
Kekonduksian elektrik
7.7 MS/m
Kerintangan dan kekonduksian elektrik
0.00000013 m Ω
Kesuperkonduksian
4.47 K
kemagnetan
typeparamagnetic
magnetic susceptibility (Mass)
0.0000000107 m³/Kg
magnetic susceptibility (Molar)
0.000000001936 m³/mol
magnetic susceptibility (Volume)
0.0001782
magnetic ordering
Suhu Curie
Néel temperature
struktur
Crystal StructureBody Centered Cubic (BCC)
lattice constant
3.31 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
6.5 MPa
Modulus pukal
200 GPa
shear modulus
69 GPa
Young's modulus
186 GPa
Nisbah Poisson
0.34
Kelajuan bunyi
3,400 m/s
pengelasan
CategoryTransition metals, Transition metals
CAS GroupVA
IUPAC GroupVB
Glawe Number52
Mendeleev Number49
Pettifor Number53
Geochemical Classhigh field strength
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
74 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
20.5
Neutron Mass Absorption
0.0041
Nombor kuantum4F3/2
space group229 (Im_3m)

Isotopes of Tantalum

Stable Isotopes1
Unstable Isotopes39
Natural Isotopes1

155Ta

Nombor jisim155
nombor neutron82
jisim atom relatif
154.974248 ± 0.000322 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
3.2 ± 1.3 ms
Spin11/2
nuclear quadrupole moment
tarikh penemuan2007
parity-

decay modeKeamatan (fizik)
p (proton emission)100%

156Ta

Nombor jisim156
nombor neutron83
jisim atom relatif
155.972087 ± 0.000322 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
106 ± 4 ms
Spin2
nuclear quadrupole moment
tarikh penemuan1992
parity-

decay modeKeamatan (fizik)
p (proton emission)71%
β+ (β+ decay; β+ = ϵ + e+)29%

157Ta

Nombor jisim157
nombor neutron84
jisim atom relatif
156.968227445 ± 0.000161087 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
10.1 ± 0.4 ms
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1979
parity+

decay modeKeamatan (fizik)
α (α emission)96.6%
p (proton emission)3.4%
β+ (β+ decay; β+ = ϵ + e+)

158Ta

Nombor jisim158
nombor neutron85
jisim atom relatif
157.966593 ± 0.000215 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
49 ± 4 ms
Spin2
nuclear quadrupole moment
tarikh penemuan1979
parity

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

159Ta

Nombor jisim159
nombor neutron86
jisim atom relatif
158.963028046 ± 0.000021137 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.04 ± 0.09 s
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1979
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)66%
α (α emission)34%

160Ta

Nombor jisim160
nombor neutron87
jisim atom relatif
159.961541678 ± 0.00005831 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.7 ± 0.2 s
Spin2
nuclear quadrupole moment
tarikh penemuan1979
parity

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)

161Ta

Nombor jisim161
nombor neutron88
jisim atom relatif
160.958369489 ± 0.000026174 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1979
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)

162Ta

Nombor jisim162
nombor neutron89
jisim atom relatif
161.957292907 ± 0.000067979 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
3.57 ± 0.12 s
Spin3
nuclear quadrupole moment
tarikh penemuan1985
parity-

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)99.926%
α (α emission)0.074%

163Ta

Nombor jisim163
nombor neutron90
jisim atom relatif
162.954337194 ± 0.00004086 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
10.6 ± 1.8 s
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1985
parity+

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

164Ta

Nombor jisim164
nombor neutron91
jisim atom relatif
163.953534 ± 0.00003 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
14.2 ± 0.3 s
Spin3
nuclear quadrupole moment
tarikh penemuan1982
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

165Ta

Nombor jisim165
nombor neutron92
jisim atom relatif
164.950780287 ± 0.000014571 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
31 ± 1.5 s
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1982
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

166Ta

Nombor jisim166
nombor neutron93
jisim atom relatif
165.950512 ± 0.00003 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
34.4 ± 0.5 s
Spin2
nuclear quadrupole moment
tarikh penemuan1977
parity

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

167Ta

Nombor jisim167
nombor neutron94
jisim atom relatif
166.948093 ± 0.00003 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.33 ± 0.07 m
Spin3/2
nuclear quadrupole moment
tarikh penemuan1982
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

168Ta

Nombor jisim168
nombor neutron95
jisim atom relatif
167.948047 ± 0.00003 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2 ± 0.1 m
Spin3
nuclear quadrupole moment
tarikh penemuan1969
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

169Ta

Nombor jisim169
nombor neutron96
jisim atom relatif
168.946011 ± 0.00003 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
4.9 ± 0.4 m
Spin5/2
nuclear quadrupole moment
tarikh penemuan1969
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

170Ta

Nombor jisim170
nombor neutron97
jisim atom relatif
169.946175 ± 0.00003 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
6.76 ± 0.06 m
Spin3
nuclear quadrupole moment
tarikh penemuan1969
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

171Ta

Nombor jisim171
nombor neutron98
jisim atom relatif
170.944476 ± 0.00003 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
23.3 ± 0.3 m
Spin5/2
nuclear quadrupole moment
tarikh penemuan1969
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

172Ta

Nombor jisim172
nombor neutron99
jisim atom relatif
171.944895 ± 0.00003 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
36.8 ± 0.3 m
Spin3
nuclear quadrupole moment
tarikh penemuan1964
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

173Ta

Nombor jisim173
nombor neutron100
jisim atom relatif
172.94375 ± 0.00003 Da
g-factor
0.68 ± 0.012
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
3.14 ± 0.13 h
Spin5/2
nuclear quadrupole moment
-1.8 ± 0.2
tarikh penemuan1960
parity-

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

174Ta

Nombor jisim174
nombor neutron101
jisim atom relatif
173.944454 ± 0.00003 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.14 ± 0.08 h
Spin3
nuclear quadrupole moment
tarikh penemuan1960
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

175Ta

Nombor jisim175
nombor neutron102
jisim atom relatif
174.943737 ± 0.00003 Da
g-factor
0.64857142857143 ± 0.014285714285714
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
10.5 ± 0.2 h
Spin7/2
nuclear quadrupole moment
3.5 ± 0.3
tarikh penemuan1960
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

176Ta

Nombor jisim176
nombor neutron103
jisim atom relatif
175.944857 ± 0.000033 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
8.09 ± 0.05 h
Spin1
nuclear quadrupole moment
tarikh penemuan1948
parity

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

177Ta

Nombor jisim177
nombor neutron104
jisim atom relatif
176.94448194 ± 0.000003558 Da
g-factor
0.64285714285714 ± 0.014285714285714
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
56.36 ± 0.13 h
Spin7/2
nuclear quadrupole moment
tarikh penemuan1948
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

178Ta

Nombor jisim178
nombor neutron105
jisim atom relatif
177.94568 ± 0.000056 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.36 ± 0.08 h
Spin7
nuclear quadrupole moment
tarikh penemuan1950
parity-

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

179Ta

Nombor jisim179
nombor neutron106
jisim atom relatif
178.94593905 ± 0.000001574 Da
g-factor
0.65314285714286 ± 0.0017142857142857
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.82 ± 0.03 y
Spin7/2
nuclear quadrupole moment
3.27 ± 0.04
tarikh penemuan1950
parity+

decay modeKeamatan (fizik)
ϵ (electron capture)100%

180Ta

Nombor jisim180
nombor neutron107
jisim atom relatif
179.947467589 ± 0.000002219 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
8.154 ± 0.006 h
Spin1
nuclear quadrupole moment
tarikh penemuan1938
parity+

decay modeKeamatan (fizik)
ϵ (electron capture)85%
β (β decay)15%

181Ta

Nombor jisim181
nombor neutron108
jisim atom relatif
180.947998528 ± 0.000001692 Da
g-factor
natural abundance
99.98799 ± 0.00032
Reputan radioaktifIsotop stabil
setengah hayatNot Radioactive ☢️
Spin7/2
nuclear quadrupole moment
3.17 ± 0.02
tarikh penemuan1932
parity+

182Ta

Nombor jisim182
nombor neutron109
jisim atom relatif
181.950154612 ± 0.000001693 Da
g-factor
1.0066666666667 ± 0.01
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
114.74 ± 0.12 d
Spin3
nuclear quadrupole moment
2.6 ± 0.3
tarikh penemuan1938
parity-

decay modeKeamatan (fizik)
β (β decay)100%

183Ta

Nombor jisim183
nombor neutron110
jisim atom relatif
182.95137538 ± 0.000001707 Da
g-factor
0.67428571428571 ± 0.0085714285714286
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
5.1 ± 0.1 d
Spin7/2
nuclear quadrupole moment
tarikh penemuan1950
parity+

decay modeKeamatan (fizik)
β (β decay)100%

184Ta

Nombor jisim184
nombor neutron111
jisim atom relatif
183.954009958 ± 0.000027923 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
8.7 ± 0.1 h
Spin5
nuclear quadrupole moment
tarikh penemuan1955
parity-

decay modeKeamatan (fizik)
β (β decay)100%

185Ta

Nombor jisim185
nombor neutron112
jisim atom relatif
184.955561317 ± 0.000015202 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
49.4 ± 1.5 m
Spin7/2
nuclear quadrupole moment
tarikh penemuan1950
parity+

decay modeKeamatan (fizik)
β (β decay)100%

186Ta

Nombor jisim186
nombor neutron113
jisim atom relatif
185.958553036 ± 0.000064425 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
10.5 ± 0.3 m
Spin3
nuclear quadrupole moment
tarikh penemuan1955
parity

decay modeKeamatan (fizik)
β (β decay)100%

187Ta

Nombor jisim187
nombor neutron114
jisim atom relatif
186.960391 ± 0.00006 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.3 ± 6 m
Spin7/2
nuclear quadrupole moment
tarikh penemuan1999
parity+

decay modeKeamatan (fizik)
β (β decay)100%

188Ta

Nombor jisim188
nombor neutron115
jisim atom relatif
187.963596 ± 0.000215 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
19.6 ± 2 s
Spin1
nuclear quadrupole moment
tarikh penemuan1999
parity-

decay modeKeamatan (fizik)
β (β decay)100%

189Ta

Nombor jisim189
nombor neutron116
jisim atom relatif
188.96569 ± 0.000215 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin7/2
nuclear quadrupole moment
tarikh penemuan1999
parity+

decay modeKeamatan (fizik)
β (β decay)100%

190Ta

Nombor jisim190
nombor neutron117
jisim atom relatif
189.969168 ± 0.000215 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
5.3 ± 0.7 s
Spin3
nuclear quadrupole moment
tarikh penemuan2009
parity

decay modeKeamatan (fizik)
β (β decay)100%

191Ta

Nombor jisim191
nombor neutron118
jisim atom relatif
190.97153 ± 0.000322 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin7/2
nuclear quadrupole moment
tarikh penemuan2009
parity+

decay modeKeamatan (fizik)
β (β decay)

192Ta

Nombor jisim192
nombor neutron119
jisim atom relatif
191.975201 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.2 ± 0.7 s
Spin2
nuclear quadrupole moment
tarikh penemuan2009
parity

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

193Ta

Nombor jisim193
nombor neutron120
jisim atom relatif
192.97766 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin7/2
nuclear quadrupole moment
tarikh penemuan2012
parity+

decay modeKeamatan (fizik)
β (β decay)
β n (β-delayed neutron emission)

194Ta

Nombor jisim194
nombor neutron121
jisim atom relatif
193.98161 ± 0.000537 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin
nuclear quadrupole moment
tarikh penemuan2012
parity

decay modeKeamatan (fizik)
β (β decay)
β n (β-delayed neutron emission)
Tantalum single crystal and 1cm3 cube

sejarah

penemu atau perekaAnders Ekeberg
tempat penemuanSweden
tarikh penemuan1802
EtimologiFrom king Tantalus of Greek mythology, father of Niobe.
sebutanTAN-te-lem (Inggeris)

sumber

Abundance
Abundance in Earth's crust
natural abundance (lautan)
0.000002 mg/L
natural abundance (Tubuh manusia)
natural abundance (Meteoroid)
0.000002 %
natural abundance (Matahari)
Abundance in Universe
0.000000008 %

Nuclear Screening Constants

1s1.4163
2p4.4136
2s19.0702
3d13.5589
3p21.1996
3s21.9085
4d36.676
4f39.5296
4p34.2652
4s33.2412
5d56.632
5p52.5265
5s50.3065
6s63.475