Platina, ²Platinum

Platina, ²Platinum (Pt)

hemijski element sa simbolom Pt i atomskim brojem 78
Atomic Number78
Atomic Weight195.084
Maseni broj195
Group10
Period6
Blockd
Proton78 p+
Neutron117 n0
Elektron78 e-
Animated Bohrov model atoma of Pt (Platina, ²Platinum)

Physical Property

Atomski Radijus
135 pm
Molarni volumen
covalent radius
123 pm
Metallic Radius
130 pm
Ionski radijus
60 pm
Crystal Radius
74 pm
Van der Waalsov radijus
213 pm
gustoća
21,5 g/cm³
Atomic Radii Of The Elements: Platina, ²Platinum0102030405060708090100110120130140150160170180190200210220pmAtomski RadijusCovalent RadiusMetallic RadiusVan der Waalsov radijus

Chemical Property

energija
proton affinity
electron affinity
ionization energy
8,95883 eV/particle
ionization energy of Pt (Platina, ²Platinum)
Toplota isparavanja
470 kJ/mol
toplota topljenja
21,76 kJ/mol
standard enthalpy of formation
565,7 kJ/mol
Elektron
electron shell2, 8, 18, 32, 17, 1
Bohrov model atoma: Pt (Platina, ²Platinum)
Valentni elektron1
Lewis structure: Pt (Platina, ²Platinum)
electron configuration[Xe] 4f14 5d9 6s1
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d9 6s1
Enhanced Bohrov model atoma of Pt (Platina, ²Platinum)
Orbital Diagram of Pt (Platina, ²Platinum)
oksidacijsko stanje-3, -2, -1, 0, 1, 2, 3, 4, 5, 6
Elektronegativnost
2.2
Electrophilicity Index
2,249320350691278 eV/particle
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
4.098,15 K
Melting Point
2.041,35 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Gray
appearancesilvery white
Indeks prelamanja
thermodynamic material property
Thermal Conductivity
71,6 W/(m K)
thermal expansion
0,0000089 1/K
molar heat capacity
25,86 J/(mol K)
Specific Heat Capacity
0,133 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
Specifična električna provodljivost
9,4 MS/m
electrical resistivity
0,00000011 m Ω
Superprovodljivost
Magnetizam
typeparamagnetic
magnetic susceptibility (Mass)
0,0000000122 m³/Kg
magnetic susceptibility (Molar)
0,00000000238 m³/mol
magnetic susceptibility (Volume)
0,0002573
magnetic ordering
Kirijeva tačka
Néel temperature
struktura
Crystal StructureFace Centered Cubic (FCC)
lattice constant
3,92 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
Tvrdoća
3,5 MPa
bulk modulus
230 GPa
shear modulus
61 GPa
Young's modulus
168 GPa
Poisson's ratio
0,38
Brzina zvuka
2.680 m/s
klasifikacija
CategoryTransition metals, Transition metals
CAS GroupVIIIA
IUPAC GroupVIII
Glawe Number64
Mendeleev Number69
Pettifor Number68
Geochemical Classnoble metal
Goldschmidt classificationsiderophile

other

Gas Basicity
polarizability
48 ± 4 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
10
Neutron Mass Absorption
0,002
Kvantni brojevi3D3
space group225 (Fm_3m)

Isotopes of Platinum

Stable Isotopes2
Unstable Isotopes42
Natural Isotopes6
Isotopic Composition19432.86%19432.86%19533.78%19533.78%19625.21%19625.21%1987.36%1987.36%1900.01%1900.01%1920.78%1920.78%

165Pt

Maseni broj165
broj neutrona87
relative atomic mass
164,999658 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
370 ± 180 us
spin7/2
nuclear quadrupole moment
datum otkrića2019
parity-

decay modeintensity
α (α emission)100%

166Pt

Maseni broj166
broj neutrona88
relative atomic mass
165,994866 ± 0,000322 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
294 ± 62 us
spin0
nuclear quadrupole moment
0
datum otkrića1996
parity+

decay modeintensity
α (α emission)100%

167Pt

Maseni broj167
broj neutrona89
relative atomic mass
166,99275 ± 0,000329 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
915 ± 123 us
spin7/2
nuclear quadrupole moment
datum otkrića1996
parity-

decay modeintensity
α (α emission)100%

168Pt

Maseni broj168
broj neutrona90
relative atomic mass
167,988180196 ± 0,00016096 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,02 ± 0,1 ms
spin0
nuclear quadrupole moment
0
datum otkrića1981
parity+

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

169Pt

Maseni broj169
broj neutrona91
relative atomic mass
168,986619 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,99 ± 0,09 ms
spin7/2
nuclear quadrupole moment
datum otkrića1981
parity-

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

170Pt

Maseni broj170
broj neutrona92
relative atomic mass
169,982502087 ± 0,000019588 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
13,93 ± 0,16 ms
spin0
nuclear quadrupole moment
0
datum otkrića1981
parity+

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

171Pt

Maseni broj171
broj neutrona93
relative atomic mass
170,981248868 ± 0,000086904 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
45,5 ± 2,5 ms
spin7/2
nuclear quadrupole moment
datum otkrića1981
parity-

decay modeintensity
α (α emission)86%
β+ (β+ decay; β+ = ϵ + e+)

172Pt

Maseni broj172
broj neutrona94
relative atomic mass
171,977341059 ± 0,000011139 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
97,6 ± 1,3 ms
spin0
nuclear quadrupole moment
0
datum otkrića1981
parity+

decay modeintensity
α (α emission)96%
β+ (β+ decay; β+ = ϵ + e+)

173Pt

Maseni broj173
broj neutrona95
relative atomic mass
172,976449922 ± 0,000068096 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
382 ± 2 ms
spin5/2
nuclear quadrupole moment
datum otkrića1966
parity-

decay modeintensity
α (α emission)86%
β+ (β+ decay; β+ = ϵ + e+)

174Pt

Maseni broj174
broj neutrona96
relative atomic mass
173,972820431 ± 0,000011098 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
862 ± 8 ms
spin0
nuclear quadrupole moment
0
datum otkrića1966
parity+

decay modeintensity
α (α emission)74.9%
β+ (β+ decay; β+ = ϵ + e+)

175Pt

Maseni broj175
broj neutrona97
relative atomic mass
174,972400593 ± 0,000019982 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,43 ± 0,04 s
spin7/2
nuclear quadrupole moment
datum otkrića1966
parity-

decay modeintensity
α (α emission)64%
β+ (β+ decay; β+ = ϵ + e+)

176Pt

Maseni broj176
broj neutrona98
relative atomic mass
175,968938162 ± 0,000013647 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,33 ± 0,15 s
spin0
nuclear quadrupole moment
0
datum otkrića1966
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)40%

177Pt

Maseni broj177
broj neutrona99
relative atomic mass
176,968469541 ± 0,00001609 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
10 ± 0,4 s
spin5/2
nuclear quadrupole moment
datum otkrića1966
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)94.3%
α (α emission)5.7%

178Pt

Maseni broj178
broj neutrona100
relative atomic mass
177,965649288 ± 0,000010878 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
20,7 ± 0,7 s
spin0
nuclear quadrupole moment
0
datum otkrića1966
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)92.3%
α (α emission)7.7%

179Pt

Maseni broj179
broj neutrona101
relative atomic mass
178,965358742 ± 0,000008563 Da
g-factor
0,86 ± 0,06
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
21,2 ± 0,4 s
spin1/2
nuclear quadrupole moment
0
datum otkrića1966
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.24%

180Pt

Maseni broj180
broj neutrona102
relative atomic mass
179,96303801 ± 0,00001079 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
56 ± 3 s
spin0
nuclear quadrupole moment
0
datum otkrića1966
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)99.48%
α (α emission)0.52%

181Pt

Maseni broj181
broj neutrona103
relative atomic mass
180,963089946 ± 0,000014695 Da
g-factor
0,96 ± 0,04
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
52 ± 2,2 s
spin1/2
nuclear quadrupole moment
0
datum otkrića1966
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.074%

182Pt

Maseni broj182
broj neutrona104
relative atomic mass
181,961171605 ± 0,000014057 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,67 ± 0,12 m
spin0
nuclear quadrupole moment
0
datum otkrića1963
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)0.962%
α (α emission)0.038%

183Pt

Maseni broj183
broj neutrona105
relative atomic mass
182,961595895 ± 0,000015261 Da
g-factor
1 ± 0,01
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,5 ± 1 m
spin1/2
nuclear quadrupole moment
0
datum otkrića1963
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.0096%

184Pt

Maseni broj184
broj neutrona106
relative atomic mass
183,959921929 ± 0,000015828 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17,3 ± 0,2 m
spin0
nuclear quadrupole moment
0
datum otkrića1963
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.0017%

185Pt

Maseni broj185
broj neutrona107
relative atomic mass
184,960613659 ± 0,000027731 Da
g-factor
-0,16 ± 0,0024444444444444
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
70,9 ± 2,4 m
spin9/2
nuclear quadrupole moment
datum otkrića1960
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.005%

186Pt

Maseni broj186
broj neutrona108
relative atomic mass
185,959350845 ± 0,000023344 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,08 ± 0,05 h
spin0
nuclear quadrupole moment
0
datum otkrića1961
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)1.4%

187Pt

Maseni broj187
broj neutrona109
relative atomic mass
186,960616646 ± 0,000025837 Da
g-factor
-0,26466666666667 ± 0,0053333333333333
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,35 ± 0,03 h
spin3/2
nuclear quadrupole moment
datum otkrića1961
parity-

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

188Pt

Maseni broj188
broj neutrona110
relative atomic mass
187,959397521 ± 0,000005694 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
10,16 ± 0,18 d
spin0
nuclear quadrupole moment
0
datum otkrića1954
parity+

decay modeintensity
ϵ (electron capture)100%
α (α emission)2.6%

189Pt

Maseni broj189
broj neutrona111
relative atomic mass
188,960848485 ± 0,000010832 Da
g-factor
-0,292 ± 0,0053333333333333
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
10,87 ± 0,12 h
spin3/2
nuclear quadrupole moment
datum otkrića1955
parity-

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

190Pt

Maseni broj190
broj neutrona112
relative atomic mass
189,959949823 ± 0,000000705 Da
g-factor
0
natural abundance
0,012 ± 0,002
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
483 ± 3 Gy
spin0
nuclear quadrupole moment
0
datum otkrića1949
parity+

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

191Pt

Maseni broj191
broj neutrona113
relative atomic mass
190,961676261 ± 0,00000443 Da
g-factor
-0,33266666666667 ± 0,0033333333333333
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,83 ± 0,02 d
spin3/2
nuclear quadrupole moment
datum otkrića1948
parity-

decay modeintensity
ϵ (electron capture)100%

192Pt

Maseni broj192
broj neutrona114
relative atomic mass
191,961042667 ± 0,000002758 Da
g-factor
0
natural abundance
0,782 ± 0,024
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića1935
parity+

decay modeintensity
α (α emission)

193Pt

Maseni broj193
broj neutrona115
relative atomic mass
192,962984546 ± 0,000001458 Da
g-factor
1,202 ± 0,016
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
50 ± 6 y
spin1/2
nuclear quadrupole moment
0
datum otkrića1948
parity-

decay modeintensity
ϵ (electron capture)100%

194Pt

Maseni broj194
broj neutrona116
relative atomic mass
193,962683498 ± 0,000000532 Da
g-factor
0
natural abundance
32,864 ± 0,41
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
datum otkrića1935
parity+

195Pt

Maseni broj195
broj neutrona117
relative atomic mass
194,964794325 ± 0,00000054 Da
g-factor
natural abundance
33,775 ± 0,24
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
datum otkrića1935
parity-

decay modeintensity
α (α emission)

196Pt

Maseni broj196
broj neutrona118
relative atomic mass
195,964954648 ± 0,000000547 Da
g-factor
0
natural abundance
25,211 ± 0,34
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
datum otkrića1935
parity+

197Pt

Maseni broj197
broj neutrona119
relative atomic mass
196,96734303 ± 0,000000575 Da
g-factor
1,02 ± 0,04
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
19,8915 ± 0,0019 h
spin1/2
nuclear quadrupole moment
0
datum otkrića1936
parity-

decay modeintensity
β (β decay)100%

198Pt

Maseni broj198
broj neutrona120
relative atomic mass
197,967896718 ± 0,000002254 Da
g-factor
0
natural abundance
7,356 ± 0,13
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića1935
parity+

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

199Pt

Maseni broj199
broj neutrona121
relative atomic mass
198,970597022 ± 0,000002317 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
30,8 ± 0,21 m
spin5/2
nuclear quadrupole moment
datum otkrića1937
parity-

decay modeintensity
β (β decay)100%

200Pt

Maseni broj200
broj neutrona122
relative atomic mass
199,971444609 ± 0,000021588 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
12,6 ± 0,3 h
spin0
nuclear quadrupole moment
0
datum otkrića1957
parity+

decay modeintensity
β (β decay)100%

201Pt

Maseni broj201
broj neutrona123
relative atomic mass
200,974513305 ± 0,000053788 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,5 ± 0,1 m
spin5/2
nuclear quadrupole moment
datum otkrića1962
parity-

decay modeintensity
β (β decay)100%

202Pt

Maseni broj202
broj neutrona124
relative atomic mass
201,975639 ± 0,000027 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
44 ± 15 h
spin0
nuclear quadrupole moment
0
datum otkrića1992
parity+

decay modeintensity
β (β decay)100%

203Pt

Maseni broj203
broj neutrona125
relative atomic mass
202,979055 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
22 ± 4 s
spin1/2
nuclear quadrupole moment
0
datum otkrića2008
parity-

decay modeintensity
β (β decay)100%

204Pt

Maseni broj204
broj neutrona126
relative atomic mass
203,981084 ± 0,000215 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
10,3 ± 1,4 s
spin0
nuclear quadrupole moment
0
datum otkrića2008
parity+

decay modeintensity
β (β decay)100%

205Pt

Maseni broj205
broj neutrona127
relative atomic mass
204,986237 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin9/2
nuclear quadrupole moment
datum otkrića2009
parity+

decay modeintensity
β (β decay)

206Pt

Maseni broj206
broj neutrona128
relative atomic mass
205,99008 ± 0,000322 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića2012
parity+

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

207Pt

Maseni broj207
broj neutrona129
relative atomic mass
206,995556 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin9/2
nuclear quadrupole moment
datum otkrića2012
parity+

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

208Pt

Maseni broj208
broj neutrona130
relative atomic mass
207,999463 ± 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)
β n (β-delayed neutron emission)
Platinum crystals

historija

otkrivač ili izumiteljJulius Scaliger
mjesto otkrićaItaly
datum otkrića1735
EtimologijaSpanish: platina (little silver).
pronunciationPLAT-n-em (engleski)

izvor

Abundance
Abundance in Earth's crust
0,005 mg/kg
natural abundance (okean)
natural abundance (ljudsko tijelo)
natural abundance (Meteoroidi)
0,000098 %
natural abundance (Sunce)
0,0000009 %
Abundance in Universe
0,0000005 %

Nuclear Screening Constants

1s1.506
2p4.4746
2s20.3702
3d13.5027
3p22.1139
3s23.0157
4d37.37
4f38.494
4p35.2696
4s34.3612
5d58.5925
5p53.5805
5s51.412
6s67.2486