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Lead,82 Pb Lead Pípè / ˈ l ɛ d / (LED ) Ìhànsójú gray Ìwúwo átọ̀mù A r, std (Pb)207.2(1) [ 1] Lead ní orítábìlì àyè
Nọ́mbà átọ̀mù (Z ) 82 Ẹgbẹ́ group 14 (carbon group) Àyè àyè 6 Àdìpọ̀ Àdìpọ̀-p Ẹ̀ka ẹ́límẹ́ntì Post-transition metal Ìtò ẹ̀lẹ́ktrọ́nù [Xe ] 4f14 5d10 6s2 6p2 Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan 2, 8, 18, 32, 18, 4 Àwọn ohun ìní ara Ìfarahàn atSTP solid Ìgbà ìyọ́ 600.61K (327.46 °C, 621.43 °F) Ígbà ìhó 2022 K (1749 °C, 3180 °F) Kíki (nearr.t. ) 11.34 g/cm3 when liquid (atm.p. ) 10.66 g/cm3 Heat of fusion 4.77kJ/mol Heat of 179.5 kJ/mol Molar heat capacity 26.650 J/(mol·K) pressure
P (Pa)
1
10
100
1 k
10 k
100 k
atT (K)
978
1088
1229
1412
1660
2027
Atomic properties Oxidation states −4, −2, −1, +1,+2 ,+3,+4 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment Electronegativity Pauling scale: 2.33 Atomic radius empirical: 175pm Covalent radius 146±5 pm Van der Waals radius 202 pm Color lines in a spectral range Spectral lines of leadOther properties Natural occurrence primordial Crystal structure (fcc) Thermal expansion 28.9 µm/(m·K) (at 25 °C) Thermal conductivity 35.3 W/(m·K) Electrical resistivity 208 n Ω·m (at 20 °C) Magnetic ordering diamagnetic Young's modulus 16 GPa Shear modulus 5.6 GPa Bulk modulus 46 GPa Poisson ratio 0.44 Mohs hardness 1.5 Brinell hardness 38.3 MPa CAS Number 7439-92-1 Mainisotopes of lead
Àdàkọ:Category-inline |references
Òjé (/ ˈ l ɛ d / ) je idipo ninlaapilese pelu ami-idamoPb (Látìnì :plumbum ) atinomba atomu 82.
↑ Meija, Juris; Coplen, Tyler B.; Berglund, Michael; Brand, Willi A.; De Bièvre, Paul; Gröning, Manfred; Holden, Norman E.; Irrgeher, Johanna et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)".Pure and Applied Chemistry 88 (3): 265–91.doi :10.1515/pac-2015-0305 .