Paladyo

Ang paladyo (Iningles palladium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Pd ug kaiphan nga atomik 46. Ang paladyo mao ang puthaw nga transisyon.

Palladium
46Pd
Ni ↑ Pd ↓ Pt Periodic table rhodium ← palladium → silver
Panagway
silvery white
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan	palladium, Pd, 46
Paglitok	/pəˈleɪdiəm/ [[Help:Pronunciation respelling key|pə-Plantilya:Smallcaps all-dee-əm]]
Kategoriyang elemento	puthaw nga transisyon
Group, period, block	10, 5, d
Gibug-aton sa atomo	106.42
Kontorno sa elektron	[Kr] 4d10 2, 8, 18, 18
History
Pagkadiskobre	William Hyde Wollaston (1803)
First isolation	William Hyde Wollaston (1803)
Physical properties
Phase	magahi
Density (near r.t.)	12.023 g·cm−3
Liquid density at m.p.	10.38 g·cm−3
Melting point	1828.05 K, 1554.9 °C, 2830.82 °F
Boiling point	3236 K, 2963 °C, 5365 °F
Heat of fusion	16.74 kJ·mol−1
Heat of vaporization	362 kJ·mol−1
Molar heat capacity	25.98 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 1721 1897 2117 2395 2753 3234
Atomic properties
Oxidation states	0, +1, +2, +4, +6 (mildly basic oxide)
Electronegativity	2.20 (Pauling scale)
Ionization energies	1st: 804.4 kJ·mol−1
	2nd: 1870 kJ·mol−1
	3rd: 3177 kJ·mol−1
Atomic radius	137 pm
Covalent radius	139±6 pm
Van der Waals radius	163 pm
Miscellanea
Crystal structure	face-centered cubic
Magnetic ordering	paramagnetic[1]
Electrical resistivity	(20 °C) 105.4 nΩ·m
Thermal conductivity	71.8 W·m−1·K−1
Thermal expansion	(25 °C) 11.8 µm·m−1·K−1
Speed of sound (thin rod)	(20 °C) 3070 m·s−1
Young's modulus	121 GPa
Shear modulus	44 GPa
Bulk modulus	180 GPa
Poisson ratio	0.39
Mohs hardness	4.75
Vickers hardness	461 MPa
Brinell hardness	310 MPa
CAS registry number	7440-05-3
Most stable isotopes
Main article: Isotopes of palladium
iso NA half-life DM DE (MeV) DP 100Pd syn 3.63 d ε - 100Rh γ 0.084, 0.074, 0.126 - 102Pd 1.02% 102Pd is stable with 56 neutrons 103Pd syn 16.991 d ε - 103Rh 104Pd 11.14% 104Pd is stable with 58 neutrons 105Pd 22.33% 105Pd is stable with 59 neutrons 106Pd 27.33% 106Pd is stable with 60 neutrons 107Pd trace 6.5×106 y β− 0.033 107Ag 108Pd 26.46% 108Pd is stable with 62 neutrons 110Pd 11.72% >6×1017 y β−β− - 110Cd
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