Tantaal

Tantaal (Ta)

chemical element with the atomic number of 73
Atomic Number73
Atomic Weight180.94788
Massagetal181
Group5
Period6
Blockd
proton73 p+
neutron108 n0
elektron73 e-
Animated Bohr model of Ta (Tantaal)

Physical Property

Atoomradius
145 pm
molar volume
Covalent Radius
146 pm
Metallic Radius
134 pm
Ioonradius
72 pm
Crystal Radius
86 pm
Van der Waals radius
222 pm
density
16,4 g/cm³
Atomic Radii Of The Elements: Tantaal0153045607590105120135150165180195210225240pmAtoomradiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energie
proton affinity
electron affinity
ionization energy
7,54957 eV/particle
ionization energy of Ta (Tantaal)
Verdampingswarmte
758 kJ/mol
smeltingswarmte
24,7 kJ/mol
Vormingsentalpie
782 kJ/mol
elektron
Elektronskil2, 8, 18, 32, 11, 2
Bohr model: Ta (Tantaal)
Valenselektrone2
Lewisteorie: Ta (Tantaal)
elektronkonfigurasie[Xe] 4f14 5d3 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d3 6s2
Enhanced Bohr model of Ta (Tantaal)
Orbital Diagram of Ta (Tantaal)
Oksidasietoestand-3, -1, 0, 1, 2, 3, 4, 5
Elektronegatiwiteit
1.5
Electrophilicity Index
1,0716190618855992 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
5 728,15 K
Melting Point
3 290,15 K
critical pressure
critical temperature
triple point
appearance
kleur
Gray
appearancegray blue
Brekingsindeks
thermodynamic material property
Thermal Conductivity
57,5 W/(m K)
thermal expansion
0,0000063 1/K
molar heat capacity
25,36 J/(mol K)
Specific Heat Capacity
heat capacity ratio
electrical properties
typeConductor
Geleidingsvermoë
7,7 MS/m
Elektriese resistiwiteit
0,00000013 m Ω
superconductivity
4,47 K
Magnetisme
typeparamagnetic
magnetic susceptibility (Mass)
0,0000000107 m³/Kg
magnetic susceptibility (Molar)
0,000000001936 m³/mol
magnetic susceptibility (Volume)
0,0001782
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal StructureBody Centered Cubic (BCC)
lattice constant
3,31 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
6,5 MPa
Massamodulus
200 GPa
Skuifmodulus
69 GPa
Young se modulus
186 GPa
Poisson se verhouding
0,34
Spoed van klank
3 400 m/s
classification
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
quantum number4F3/2
Ruimtegroep229 (Im_3m)

Isotopes of Tantalum

Stable Isotopes1
Unstable Isotopes39
Natural Isotopes1

155Ta

Massagetal155
neutron number82
relative atomic mass
154,974248 ± 0,000322 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
3,2 ± 1,3 ms
spin11/2
nuclear quadrupole moment
ontdekkingsdatum2007
parity-

decay modeintensity
p (proton emission)100%

156Ta

Massagetal156
neutron number83
relative atomic mass
155,972087 ± 0,000322 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
106 ± 4 ms
spin2
nuclear quadrupole moment
ontdekkingsdatum1992
parity-

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

157Ta

Massagetal157
neutron number84
relative atomic mass
156,968227445 ± 0,000161087 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
10,1 ± 0,4 ms
spin1/2
nuclear quadrupole moment
0
ontdekkingsdatum1979
parity+

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

158Ta

Massagetal158
neutron number85
relative atomic mass
157,966593 ± 0,000215 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
49 ± 4 ms
spin2
nuclear quadrupole moment
ontdekkingsdatum1979
parity

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

159Ta

Massagetal159
neutron number86
relative atomic mass
158,963028046 ± 0,000021137 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
1,04 ± 0,09 s
spin1/2
nuclear quadrupole moment
0
ontdekkingsdatum1979
parity+

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

160Ta

Massagetal160
neutron number87
relative atomic mass
159,961541678 ± 0,00005831 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
1,7 ± 0,2 s
spin2
nuclear quadrupole moment
ontdekkingsdatum1979
parity

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

161Ta

Massagetal161
neutron number88
relative atomic mass
160,958369489 ± 0,000026174 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
spin1/2
nuclear quadrupole moment
0
ontdekkingsdatum1979
parity+

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

162Ta

Massagetal162
neutron number89
relative atomic mass
161,957292907 ± 0,000067979 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
3,57 ± 0,12 s
spin3
nuclear quadrupole moment
ontdekkingsdatum1985
parity-

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

163Ta

Massagetal163
neutron number90
relative atomic mass
162,954337194 ± 0,00004086 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
10,6 ± 1,8 s
spin1/2
nuclear quadrupole moment
0
ontdekkingsdatum1985
parity+

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

164Ta

Massagetal164
neutron number91
relative atomic mass
163,953534 ± 0,00003 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
14,2 ± 0,3 s
spin3
nuclear quadrupole moment
ontdekkingsdatum1982
parity+

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

165Ta

Massagetal165
neutron number92
relative atomic mass
164,950780287 ± 0,000014571 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
31 ± 1,5 s
spin1/2
nuclear quadrupole moment
0
ontdekkingsdatum1982
parity+

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

166Ta

Massagetal166
neutron number93
relative atomic mass
165,950512 ± 0,00003 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
34,4 ± 0,5 s
spin2
nuclear quadrupole moment
ontdekkingsdatum1977
parity

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

167Ta

Massagetal167
neutron number94
relative atomic mass
166,948093 ± 0,00003 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
1,33 ± 0,07 m
spin3/2
nuclear quadrupole moment
ontdekkingsdatum1982
parity+

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

168Ta

Massagetal168
neutron number95
relative atomic mass
167,948047 ± 0,00003 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
2 ± 0,1 m
spin3
nuclear quadrupole moment
ontdekkingsdatum1969
parity+

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

169Ta

Massagetal169
neutron number96
relative atomic mass
168,946011 ± 0,00003 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
4,9 ± 0,4 m
spin5/2
nuclear quadrupole moment
ontdekkingsdatum1969
parity+

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

170Ta

Massagetal170
neutron number97
relative atomic mass
169,946175 ± 0,00003 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
6,76 ± 0,06 m
spin3
nuclear quadrupole moment
ontdekkingsdatum1969
parity+

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

171Ta

Massagetal171
neutron number98
relative atomic mass
170,944476 ± 0,00003 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
23,3 ± 0,3 m
spin5/2
nuclear quadrupole moment
ontdekkingsdatum1969
parity+

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

172Ta

Massagetal172
neutron number99
relative atomic mass
171,944895 ± 0,00003 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
36,8 ± 0,3 m
spin3
nuclear quadrupole moment
ontdekkingsdatum1964
parity+

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

173Ta

Massagetal173
neutron number100
relative atomic mass
172,94375 ± 0,00003 Da
g-factor
0,68 ± 0,012
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
3,14 ± 0,13 h
spin5/2
nuclear quadrupole moment
-1,8 ± 0,2
ontdekkingsdatum1960
parity-

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

174Ta

Massagetal174
neutron number101
relative atomic mass
173,944454 ± 0,00003 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
1,14 ± 0,08 h
spin3
nuclear quadrupole moment
ontdekkingsdatum1960
parity+

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

175Ta

Massagetal175
neutron number102
relative atomic mass
174,943737 ± 0,00003 Da
g-factor
0,64857142857143 ± 0,014285714285714
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
10,5 ± 0,2 h
spin7/2
nuclear quadrupole moment
3,5 ± 0,3
ontdekkingsdatum1960
parity+

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

176Ta

Massagetal176
neutron number103
relative atomic mass
175,944857 ± 0,000033 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
8,09 ± 0,05 h
spin1
nuclear quadrupole moment
ontdekkingsdatum1948
parity

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

177Ta

Massagetal177
neutron number104
relative atomic mass
176,94448194 ± 0,000003558 Da
g-factor
0,64285714285714 ± 0,014285714285714
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
56,36 ± 0,13 h
spin7/2
nuclear quadrupole moment
ontdekkingsdatum1948
parity+

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

178Ta

Massagetal178
neutron number105
relative atomic mass
177,94568 ± 0,000056 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
2,36 ± 0,08 h
spin7
nuclear quadrupole moment
ontdekkingsdatum1950
parity-

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

179Ta

Massagetal179
neutron number106
relative atomic mass
178,94593905 ± 0,000001574 Da
g-factor
0,65314285714286 ± 0,0017142857142857
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
1,82 ± 0,03 y
spin7/2
nuclear quadrupole moment
3,27 ± 0,04
ontdekkingsdatum1950
parity+

decay modeintensity
ϵ (electron capture)100%

180Ta

Massagetal180
neutron number107
relative atomic mass
179,947467589 ± 0,000002219 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
8,154 ± 0,006 h
spin1
nuclear quadrupole moment
ontdekkingsdatum1938
parity+

decay modeintensity
ϵ (electron capture)85%
β (β decay)15%

181Ta

Massagetal181
neutron number108
relative atomic mass
180,947998528 ± 0,000001692 Da
g-factor
natural abundance
99,98799 ± 0,00032
radioaktiwiteitStabiele isotoop
HalfleeftydNot Radioactive ☢️
spin7/2
nuclear quadrupole moment
3,17 ± 0,02
ontdekkingsdatum1932
parity+

182Ta

Massagetal182
neutron number109
relative atomic mass
181,950154612 ± 0,000001693 Da
g-factor
1,0066666666667 ± 0,01
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
114,74 ± 0,12 d
spin3
nuclear quadrupole moment
2,6 ± 0,3
ontdekkingsdatum1938
parity-

decay modeintensity
β (β decay)100%

183Ta

Massagetal183
neutron number110
relative atomic mass
182,95137538 ± 0,000001707 Da
g-factor
0,67428571428571 ± 0,0085714285714286
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
5,1 ± 0,1 d
spin7/2
nuclear quadrupole moment
ontdekkingsdatum1950
parity+

decay modeintensity
β (β decay)100%

184Ta

Massagetal184
neutron number111
relative atomic mass
183,954009958 ± 0,000027923 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
8,7 ± 0,1 h
spin5
nuclear quadrupole moment
ontdekkingsdatum1955
parity-

decay modeintensity
β (β decay)100%

185Ta

Massagetal185
neutron number112
relative atomic mass
184,955561317 ± 0,000015202 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
49,4 ± 1,5 m
spin7/2
nuclear quadrupole moment
ontdekkingsdatum1950
parity+

decay modeintensity
β (β decay)100%

186Ta

Massagetal186
neutron number113
relative atomic mass
185,958553036 ± 0,000064425 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
10,5 ± 0,3 m
spin3
nuclear quadrupole moment
ontdekkingsdatum1955
parity

decay modeintensity
β (β decay)100%

187Ta

Massagetal187
neutron number114
relative atomic mass
186,960391 ± 0,00006 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
2,3 ± 6 m
spin7/2
nuclear quadrupole moment
ontdekkingsdatum1999
parity+

decay modeintensity
β (β decay)100%

188Ta

Massagetal188
neutron number115
relative atomic mass
187,963596 ± 0,000215 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
19,6 ± 2 s
spin1
nuclear quadrupole moment
ontdekkingsdatum1999
parity-

decay modeintensity
β (β decay)100%

189Ta

Massagetal189
neutron number116
relative atomic mass
188,96569 ± 0,000215 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
spin7/2
nuclear quadrupole moment
ontdekkingsdatum1999
parity+

decay modeintensity
β (β decay)100%

190Ta

Massagetal190
neutron number117
relative atomic mass
189,969168 ± 0,000215 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
5,3 ± 0,7 s
spin3
nuclear quadrupole moment
ontdekkingsdatum2009
parity

decay modeintensity
β (β decay)100%

191Ta

Massagetal191
neutron number118
relative atomic mass
190,97153 ± 0,000322 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
spin7/2
nuclear quadrupole moment
ontdekkingsdatum2009
parity+

decay modeintensity
β (β decay)

192Ta

Massagetal192
neutron number119
relative atomic mass
191,975201 ± 0,000429 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
2,2 ± 0,7 s
spin2
nuclear quadrupole moment
ontdekkingsdatum2009
parity

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

193Ta

Massagetal193
neutron number120
relative atomic mass
192,97766 ± 0,000429 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
spin7/2
nuclear quadrupole moment
ontdekkingsdatum2012
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)

194Ta

Massagetal194
neutron number121
relative atomic mass
193,98161 ± 0,000537 Da
g-factor
natural abundance
radioaktiwiteit☢️ radioactive element
Halfleeftyd
spin
nuclear quadrupole moment
ontdekkingsdatum2012
parity

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

geskiedenis

Ontdek deurAnders Ekeberg
ligging van ontdekkingSweden
ontdekkingsdatum1802
etimologieFrom king Tantalus of Greek mythology, father of Niobe.
uitspraakTAN-te-lem (Engels)

source

Abundance
Abundance in Earth's crust
natural abundance (oseaan)
0,000002 mg/L
natural abundance (human body)
natural abundance (Meteoroïde)
0,000002 %
natural abundance (Son)
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