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| General
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| Name, Symbol, Number | Platinum, Pt, 78
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| Chemical series | transition metals
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| Group, Period, BlockA block of the periodic table of elements is a set of adjacent groups. The respective highest-energy electrons in each element in a block belong to the same atomic orbital type. Each block is named after its characteristic orbital; thus, the blocks are: s | 10Group 10 Period 4 28 Ni 5 46 Pd 6 78 Pt 7 110 Ds The Group 10 elements are: Nickel (28) Palladium (46) Platinum (78) Darmstadtium (110) Key to color coding in table slice on right: Transition metals Color coding for these atomic numbers: At room temperatu, 6A period 6 element is one of the chemical elements in the sixth row (or period of the periodic table of the elements, including the Lanthanides. These are: Chemical elements in the sixth period Group 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 #Name 55 C, dThe d-block of the periodic table of elements consists of those periodic table groups that contain elements in which, in the atomic ground state, the highest-energy electron is in a d- orbital. The d-block elements are often also known as transition metal
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| DensityFor other meanings of density, see density (disambiguation Density (symbol: rho Greek: rho) is a measure of mass per unit of volume. The higher an object's density, the higher its mass per volume. The average density of an object equals its total mass div, Hardness | 21450 kg/m³Kilogram per cubic metre is the SI measure of density and is represented as kg/m³, where kg stands for kilogram and m³ stands for cubic metre. The density of water is about 1000 kg/m³, since a cubic metre of water weighs about a tonne. kg/m³" is sometimes, 3.5
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| AppearanceFor alternative meanings, see color (disambiguation). visual arts. Color (or colour is a sensation which (in humans) derives from the ability of the fine structure of the eye to distinguish three differently filtered analyses of a view. The perception of | grayish white
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| Atomic properties
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| Atomic weight | 195.078 amu
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| Atomic radius (calc.) | 135 (177) pm
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| Covalent radius | 128 pm
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| van der Waals radius | 175 pm
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| Electron configuration | [ Xe]4 f145d96 s¹
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| e- 's per energy level | 2, 8, 18, 32, 17, 1
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| Oxidation states ( Oxide) | 2, 4 (mildly basic)
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| Crystal structure | Cubic face centered
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| Physical properties
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| State of matter | solid ( paramagnetic)
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| Melting point | 2041.4 K (3214.9 ° F)
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| Boiling point | 4098 K (6917 °F)
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| Molar volume | 9.09 ×10-6 m³/mol
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| Heat of vaporization | 510 kJ/mol
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| Heat of fusion | 19.6 kJ/mol
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| Vapor pressure | 0.0312 Pa at 2045 K
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| Speed of sound | 2680 m/s at 293.15 K
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| Miscellaneous
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| Electronegativity | 2.28 ( Pauling scale)
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| Specific heat capacity | 130 J/(kg·K)
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| Electrical conductivity | 09.66 106/(m· ohm)
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| Thermal conductivity | 71.6 W/(m·K)
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| 1st ionization potential | 870 kJ/mol
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| 2nd ionization potential | 1791 kJ/mol
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| Most stable isotopes
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| iso
| NA
| half-life
| DM
| DE M eV
| DP
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| 190Pt | 0.01%
| 6.5 E11 y
| α
| 3.249
| 186Os
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| 192Pt
| 0.79%
| Pt is stable with 114 neutrons
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| 193Pt
| {syn.}
| 50 y
| ε
| 0.057
| 193Ir
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| 194Pt
| 32.9%
| Pt is stable with 116 neutrons
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| 195Pt
| 33.8%
| Pt is stable with 117 neutrons
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| 196Pt
| 25.3%
| Pt is stable with 118 neutrons
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| 198Pt
| 7.2%
| Pt is stable with 120 neutrons
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| SI units & STP are used except where noted.
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