Platino
Platino | |||||||||||||||
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Bigkas | /ˈplætɪnəm/ | ||||||||||||||
Appearance | silvery white | ||||||||||||||
Standard atomic weight Ar°(Pt) | |||||||||||||||
Platino sa talahanayang peryodiko | |||||||||||||||
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Group | 10 | ||||||||||||||
Period | 6 | ||||||||||||||
Block | d-block | ||||||||||||||
Electron configuration | [Xe] 4f14 5d9 6s1 | ||||||||||||||
Electrons per shell | 2, 8, 18, 32, 17, 1 | ||||||||||||||
Physical properties | |||||||||||||||
Phase at STP | solido | ||||||||||||||
Melting point | 2041.4 K (1768.3 °C, 3214.9 °F) | ||||||||||||||
Boiling point | 4098 K (3825 °C, 6917 °F) | ||||||||||||||
Density (near r.t.) | 21.45 g/cm3 | ||||||||||||||
when liquid (at m.p.) | 19.77 g/cm3 | ||||||||||||||
Heat of fusion | 22.17 kJ/mol | ||||||||||||||
Heat of vaporization | 510 kJ/mol | ||||||||||||||
Molar heat capacity | 25.86 J/(mol·K) | ||||||||||||||
Vapor pressure
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Atomic properties | |||||||||||||||
Oxidation states | −3, −2, −1, 0, +1, +2, +3, +4, +5, +6 (isang katamtamang panimulang oksido) | ||||||||||||||
Electronegativity | Pauling scale: 2.28 | ||||||||||||||
Ionization energies |
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Atomic radius | empirical: 139 pm | ||||||||||||||
Covalent radius | 136±5 pm | ||||||||||||||
Van der Waals radius | 175 pm | ||||||||||||||
Mga linyang espektral ng platino | |||||||||||||||
Other properties | |||||||||||||||
Crystal structure | face-centered cubic (fcc) | ||||||||||||||
Thermal expansion | 8.8 µm/(m⋅K) (at 25 °C) | ||||||||||||||
Thermal conductivity | 71.6 W/(m⋅K) | ||||||||||||||
Electrical resistivity | 105 nΩ⋅m (at 20 °C) | ||||||||||||||
Magnetic ordering | paramagnetic | ||||||||||||||
Molar magnetic susceptibility | +201.9 × 10−6 cm3/mol (290 K)[3] | ||||||||||||||
Tensile strength | 125–240 MPa | ||||||||||||||
Young's modulus | 168 GPa | ||||||||||||||
Shear modulus | 61 GPa | ||||||||||||||
Bulk modulus | 230 GPa | ||||||||||||||
Speed of sound thin rod | 2800 m/s (at r.t.) | ||||||||||||||
Poisson ratio | 0.38 | ||||||||||||||
Mohs hardness | 3.5 | ||||||||||||||
Vickers hardness | 400–550 MPa | ||||||||||||||
Brinell hardness | 300–500 MPa | ||||||||||||||
CAS Number | 7440-06-4 | ||||||||||||||
History | |||||||||||||||
Discovery | Antonio de Ulloa (1735) | ||||||||||||||
Isotopes of platino | |||||||||||||||
Template:infobox platino isotopes does not exist | |||||||||||||||
Ang platino[4][5] o platinum[4][5] (Kastila: platino, Ingles: platinum,daglat o sagisag = Pt) ay isang uri ng mala-pilak na elementong may mga katangiang maaaring mabatak, mapukpok, at hindi kinakalawang. Kalimitan itong ginagamit para sa paggawa ng mga kasangkapang elektroniko, mga alahas, at mga pampasta para sa mga ngiping may sira o bukbok. Natuklasan ito ni Antonio de Ulloa, kasama si Jorge Juan y Santacilia noong 1735. Kabilang sa mga katangian nito ang pagkakaroon ng atomikong bilang na 78, ng pamantayang atomikong timbang na 195.09, antas o degri ng pagkatunaw na 1,769oC, antas o degri ng pagkulo 3,827oC, at tiyak na kalubhaan (tiyak na dagsin o espesipikong grabedad) na 21.45.
Mga sanggunian
[baguhin | baguhin ang wikitext]- ↑ "Standard Atomic Weights: Platinum" (sa wikang Ingles). CIAAW. 2005.
((cite web))
: CS1 maint: date auto-translated (link) - ↑ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (sa wikang Ingles). doi:10.1515/pac-2019-0603. ISSN 1365-3075.
((cite journal))
: CS1 maint: date auto-translated (link) - ↑ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.
((cite book))
: CS1 maint: date auto-translated (link) - ↑ 4.0 4.1 English, Leo James (1977). "Platino, platinum". Tagalog-English Dictionary (sa wikang Ingles). Congregation of the Most Holy Redeemer. ISBN 9710810731.
((cite ensiklopedya))
: CS1 maint: date auto-translated (link) - ↑ 5.0 5.1 Gaboy, Luciano L. Platinum, platino - Gabby's Dictionary: Praktikal na Talahuluganang Ingles-Filipino ni Gabby/Gabby's Practical English-Filipino Dictionary, GabbyDictionary.com.
Talahanayang peryodiko | |||||||||||||||||||||||||||||||||||||||||
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Li | Be | B | C | N | O | F | Ne | ||||||||||||||||||||||||||||||||||
Na | Mg | Al | Si | P | S | Cl | Ar | ||||||||||||||||||||||||||||||||||
K | Ca | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr | ||||||||||||||||||||||||
Rb | Sr | Y | Zr | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe | ||||||||||||||||||||||||
Cs | Ba | La | Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn | ||||||||||
Fr | Ra | Ac | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og | ||||||||||
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