Platino

Platino, ₀₀Pt
Platino
Bigkas	/ˈplætɪnəm/ (PLAT-in-əm)
Appearance	silvery white
Standard atomic weight Ar°(Pt)
	195.084±0.009; 195.08±0.02 (pinaikli);
Platino sa talahanayang peryodiko
	iridium ← platino → gold
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)
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	1st: 870 kJ/mol ; 2nd: 1791 kJ/mol ; ;
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)
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 t; b;
	Template:infobox platino isotopes does not exist
	Kategorya: Platino; tingnan; usapan; baguhin; \| references

Huwag itong ikalito sa platina at plutonyum.

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 1,769^oC, antas o degri ng pagkulo 3,827^oC, at tiyak na kalubhaan (tiyak na dagsin o espesipikong grabedad) na 21.45.

Mga sanggunian

↑ "Standard Atomic Weights: Platinum" (sa wikang Ingles). CIAAW. 2005.
↑ 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.
↑ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.
↑ ^4.0 ^4.1 English, Leo James (1977). "Platino, platinum". Tagalog-English Dictionary (sa wikang Ingles). Congregation of the Most Holy Redeemer. ISBN 9710810731.
↑ ^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.

[1] "Standard Atomic Weights: Platinum" (sa wikang Ingles). CIAAW. 2005.

[CIAAW2021-2] 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.

[3] Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

[JETE-4] 4.0 ^4.1 English, Leo James (1977). "Platino, platinum". Tagalog-English Dictionary (sa wikang Ingles). Congregation of the Most Holy Redeemer. ISBN 9710810731.

[Gabby-5] 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.

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