Tantal

Tantal (Ta)

chemical element with the atomic number of 73
Atomic Number73
Atomic Weight180.94788
Numri i masës181
Group5
Period6
Blockd
protoni73 p+
neutroni108 n0
elektroni73 e-
Animated Bohr model of Ta (Tantal)

Tipar Fizik

Atomic Radius
145 pm
molar volume
covalent radius
146 pm
Metallic Radius
134 pm
ionic radius
72 pm
Crystal Radius
86 pm
Van der Waals radius
222 pm
density
16,4 g/cm³
Atomic Radii Of The Elements: Tantal0153045607590105120135150165180195210225240pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energjia
proton affinity
electron affinity
ionization energy
7,54957 eV/particle
ionization energy of Ta (Tantal)
enthalpy of vaporization
758 kJ/mol
enthalpy of fusion
24,7 kJ/mol
standard enthalpy of formation
782 kJ/mol
elektroni
electron shell2, 8, 18, 32, 11, 2
Bohr model: Ta (Tantal)
valence electron2
Lewis structure: Ta (Tantal)
konfigurimi i elektronit[Xe] 4f14 5d3 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d3 6s2
Enhanced Bohr model of Ta (Tantal)
Orbital Diagram of Ta (Tantal)
oxidation number-3, -1, 0, 1, 2, 3, 4, 5
Elektronegativiteti
1.5
Electrophilicity Index
1,0716190618855992 eV/particle
fundamental state of matter
gjendja agregate e materiesSolid
gaseous state of matter
Boiling Point
5 728,15 K
Melting Point
3 290,15 K
critical pressure
critical temperature
triple point
appearance
Ngjyra
Gray
appearancegray blue
refractive index
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
electrical conductivity
7,7 MS/m
electrical resistivity
0,00000013 m Ω
Superpërcjellshmëria
4,47 K
Magnetizimi
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
strukturë
Crystal StructureBody Centered Cubic (BCC)
lattice constant
3,31 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
6,5 MPa
bulk modulus
200 GPa
shear modulus
69 GPa
Young's modulus
186 GPa
Poisson's ratio
0,34
Shpejtësia e zërit
3 400 m/s
klasifikim
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
numër kuantik4F3/2
space group229 (Im_3m)

Isotopes of Tantalum

Stable Isotopes1
Unstable Isotopes39
Natural Isotopes1

155Ta

Numri i masës155
numri i neutroneve82
relative atomic mass
154,974248 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,2 ± 1,3 ms
Spini11/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2007
parity-

decay modeintensitet
p (proton emission)100%

156Ta

Numri i masës156
numri i neutroneve83
relative atomic mass
155,972087 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
106 ± 4 ms
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1992
parity-

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

157Ta

Numri i masës157
numri i neutroneve84
relative atomic mass
156,968227445 ± 0,000161087 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
10,1 ± 0,4 ms
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1979
parity+

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

158Ta

Numri i masës158
numri i neutroneve85
relative atomic mass
157,966593 ± 0,000215 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
49 ± 4 ms
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1979
parity

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

159Ta

Numri i masës159
numri i neutroneve86
relative atomic mass
158,963028046 ± 0,000021137 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,04 ± 0,09 s
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1979
parity+

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

160Ta

Numri i masës160
numri i neutroneve87
relative atomic mass
159,961541678 ± 0,00005831 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,7 ± 0,2 s
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1979
parity

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

161Ta

Numri i masës161
numri i neutroneve88
relative atomic mass
160,958369489 ± 0,000026174 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1979
parity+

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

162Ta

Numri i masës162
numri i neutroneve89
relative atomic mass
161,957292907 ± 0,000067979 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,57 ± 0,12 s
Spini3
nuclear quadrupole moment
koha e zbulimit apo shpikjes1985
parity-

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

163Ta

Numri i masës163
numri i neutroneve90
relative atomic mass
162,954337194 ± 0,00004086 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
10,6 ± 1,8 s
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1985
parity+

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

164Ta

Numri i masës164
numri i neutroneve91
relative atomic mass
163,953534 ± 0,00003 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
14,2 ± 0,3 s
Spini3
nuclear quadrupole moment
koha e zbulimit apo shpikjes1982
parity+

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

165Ta

Numri i masës165
numri i neutroneve92
relative atomic mass
164,950780287 ± 0,000014571 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
31 ± 1,5 s
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1982
parity+

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

166Ta

Numri i masës166
numri i neutroneve93
relative atomic mass
165,950512 ± 0,00003 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
34,4 ± 0,5 s
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1977
parity

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

167Ta

Numri i masës167
numri i neutroneve94
relative atomic mass
166,948093 ± 0,00003 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,33 ± 0,07 m
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1982
parity+

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

168Ta

Numri i masës168
numri i neutroneve95
relative atomic mass
167,948047 ± 0,00003 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2 ± 0,1 m
Spini3
nuclear quadrupole moment
koha e zbulimit apo shpikjes1969
parity+

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

169Ta

Numri i masës169
numri i neutroneve96
relative atomic mass
168,946011 ± 0,00003 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4,9 ± 0,4 m
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1969
parity+

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

170Ta

Numri i masës170
numri i neutroneve97
relative atomic mass
169,946175 ± 0,00003 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
6,76 ± 0,06 m
Spini3
nuclear quadrupole moment
koha e zbulimit apo shpikjes1969
parity+

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

171Ta

Numri i masës171
numri i neutroneve98
relative atomic mass
170,944476 ± 0,00003 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
23,3 ± 0,3 m
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1969
parity+

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

172Ta

Numri i masës172
numri i neutroneve99
relative atomic mass
171,944895 ± 0,00003 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
36,8 ± 0,3 m
Spini3
nuclear quadrupole moment
koha e zbulimit apo shpikjes1964
parity+

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

173Ta

Numri i masës173
numri i neutroneve100
relative atomic mass
172,94375 ± 0,00003 Da
g-factor
0,68 ± 0,012
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,14 ± 0,13 h
Spini5/2
nuclear quadrupole moment
-1,8 ± 0,2
koha e zbulimit apo shpikjes1960
parity-

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

174Ta

Numri i masës174
numri i neutroneve101
relative atomic mass
173,944454 ± 0,00003 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,14 ± 0,08 h
Spini3
nuclear quadrupole moment
koha e zbulimit apo shpikjes1960
parity+

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

175Ta

Numri i masës175
numri i neutroneve102
relative atomic mass
174,943737 ± 0,00003 Da
g-factor
0,64857142857143 ± 0,014285714285714
natural abundance
Radioaktivitet☢️ radioactive element
half-life
10,5 ± 0,2 h
Spini7/2
nuclear quadrupole moment
3,5 ± 0,3
koha e zbulimit apo shpikjes1960
parity+

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

176Ta

Numri i masës176
numri i neutroneve103
relative atomic mass
175,944857 ± 0,000033 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
8,09 ± 0,05 h
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes1948
parity

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

177Ta

Numri i masës177
numri i neutroneve104
relative atomic mass
176,94448194 ± 0,000003558 Da
g-factor
0,64285714285714 ± 0,014285714285714
natural abundance
Radioaktivitet☢️ radioactive element
half-life
56,36 ± 0,13 h
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1948
parity+

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

178Ta

Numri i masës178
numri i neutroneve105
relative atomic mass
177,94568 ± 0,000056 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,36 ± 0,08 h
Spini7
nuclear quadrupole moment
koha e zbulimit apo shpikjes1950
parity-

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

179Ta

Numri i masës179
numri i neutroneve106
relative atomic mass
178,94593905 ± 0,000001574 Da
g-factor
0,65314285714286 ± 0,0017142857142857
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,82 ± 0,03 y
Spini7/2
nuclear quadrupole moment
3,27 ± 0,04
koha e zbulimit apo shpikjes1950
parity+

decay modeintensitet
ϵ (electron capture)100%

180Ta

Numri i masës180
numri i neutroneve107
relative atomic mass
179,947467589 ± 0,000002219 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
8,154 ± 0,006 h
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes1938
parity+

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

181Ta

Numri i masës181
numri i neutroneve108
relative atomic mass
180,947998528 ± 0,000001692 Da
g-factor
natural abundance
99,98799 ± 0,00032
Radioaktivitetstable isotope
half-lifeNot Radioactive ☢️
Spini7/2
nuclear quadrupole moment
3,17 ± 0,02
koha e zbulimit apo shpikjes1932
parity+

182Ta

Numri i masës182
numri i neutroneve109
relative atomic mass
181,950154612 ± 0,000001693 Da
g-factor
1,0066666666667 ± 0,01
natural abundance
Radioaktivitet☢️ radioactive element
half-life
114,74 ± 0,12 d
Spini3
nuclear quadrupole moment
2,6 ± 0,3
koha e zbulimit apo shpikjes1938
parity-

decay modeintensitet
β (β decay)100%

183Ta

Numri i masës183
numri i neutroneve110
relative atomic mass
182,95137538 ± 0,000001707 Da
g-factor
0,67428571428571 ± 0,0085714285714286
natural abundance
Radioaktivitet☢️ radioactive element
half-life
5,1 ± 0,1 d
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1950
parity+

decay modeintensitet
β (β decay)100%

184Ta

Numri i masës184
numri i neutroneve111
relative atomic mass
183,954009958 ± 0,000027923 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
8,7 ± 0,1 h
Spini5
nuclear quadrupole moment
koha e zbulimit apo shpikjes1955
parity-

decay modeintensitet
β (β decay)100%

185Ta

Numri i masës185
numri i neutroneve112
relative atomic mass
184,955561317 ± 0,000015202 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
49,4 ± 1,5 m
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1950
parity+

decay modeintensitet
β (β decay)100%

186Ta

Numri i masës186
numri i neutroneve113
relative atomic mass
185,958553036 ± 0,000064425 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
10,5 ± 0,3 m
Spini3
nuclear quadrupole moment
koha e zbulimit apo shpikjes1955
parity

decay modeintensitet
β (β decay)100%

187Ta

Numri i masës187
numri i neutroneve114
relative atomic mass
186,960391 ± 0,00006 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,3 ± 6 m
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1999
parity+

decay modeintensitet
β (β decay)100%

188Ta

Numri i masës188
numri i neutroneve115
relative atomic mass
187,963596 ± 0,000215 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
19,6 ± 2 s
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes1999
parity-

decay modeintensitet
β (β decay)100%

189Ta

Numri i masës189
numri i neutroneve116
relative atomic mass
188,96569 ± 0,000215 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1999
parity+

decay modeintensitet
β (β decay)100%

190Ta

Numri i masës190
numri i neutroneve117
relative atomic mass
189,969168 ± 0,000215 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
5,3 ± 0,7 s
Spini3
nuclear quadrupole moment
koha e zbulimit apo shpikjes2009
parity

decay modeintensitet
β (β decay)100%

191Ta

Numri i masës191
numri i neutroneve118
relative atomic mass
190,97153 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2009
parity+

decay modeintensitet
β (β decay)

192Ta

Numri i masës192
numri i neutroneve119
relative atomic mass
191,975201 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,2 ± 0,7 s
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2009
parity

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

193Ta

Numri i masës193
numri i neutroneve120
relative atomic mass
192,97766 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2012
parity+

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

194Ta

Numri i masës194
numri i neutroneve121
relative atomic mass
193,98161 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini
nuclear quadrupole moment
koha e zbulimit apo shpikjes2012
parity

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

historia

zbuluesAnders Ekeberg
vendndodhja e zbulimitSweden
koha e zbulimit apo shpikjes1802
EtimologjiaFrom king Tantalus of Greek mythology, father of Niobe.
pronunciationTAN-te-lem (anglisht)

burim

Abundance
Abundance in Earth's crust
natural abundance (Oqeani)
0,000002 mg/L
natural abundance (Trupi i njeriut)
natural abundance (meteoroid)
0,000002 %
natural abundance (Diell)
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