Òjé

Lát'ọwọ́ Wikipedia, ìwé ìmọ̀ ọ̀fẹ́
Lọ sí: atọ́ka, àwárí
Lead
82Pb
Sn

Pb

Uuq
thalliumleadbismuth
Ìhànsójú
gray
Àwọn ìdámọ́ wíwọ́pọ̀
Orúkọ, àmì-ìdámọ́, nọ́mbà lead, Pb, 82
Ìpèlóhùn /ˈlɛd/, led
Ẹ̀ka ẹ́límẹ̀nti post-transition metal
Ẹgbẹ́, àsìkò, àdìpò 146, p
Ìwúwo átọ́mù 207.2
Ìtòléra ẹ̀lẹ́ktrónì [Xe] 4f14 5d10 6s2 6p2
2, 8, 18, 32, 18, 4
Physical properties
Phase solid
Density (near r.t.) 11.34 g·cm−3
Liquid density at m.p. 10.66 g·cm−3
Melting point 600.61 K, 327.46 °C, 621.43 °F
Boiling point 2022 K, 1749 °C, 3180 °F
Heat of fusion 4.77 kJ·mol−1
Heat of vaporization 179.5 kJ·mol−1
Molar heat capacity 26.650 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 978 1088 1229 1412 1660 2027
Atomic properties
Oxidation states 4, 2, -4 (Amphoteric oxide)
Electronegativity 2.33 (Pauling scale)
Ionization energies 1st: 715.6 kJ·mol−1
2nd: 1450.5 kJ·mol−1
3rd: 3081.5 kJ·mol−1
Atomic radius 175 pm
Covalent radius 146±5 pm
Van der Waals radius 202 pm
Miscellanea
Crystal structure face-centered cubic
Lead has a face-centered cubic crystal structure
Magnetic ordering diamagnetic
Electrical resistivity (20 °C) 208 nΩ·m
Thermal conductivity 35.3 W·m−1·K−1
Thermal expansion (25 °C) 28.9 µm·m−1·K−1
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 registry number 7439-92-1
Àwọn ísótòpù dídúró jùlọ
Main article: Àwọn ísótòpù lead
iso NA half-life DM DE (MeV) DP
204Pb 1.4% >1.4×1017 y Alpha 2.186 200Hg
205Pb syn 1.53×107 y Epsilon 0.051 205Tl
206Pb 24.1% 206Pb is stable with 124 neutrons
207Pb 22.1% 207Pb is stable with 125 neutrons
208Pb 52.4% 208Pb is stable with 126 neutrons
210Pb trace 22.3 y Alpha 3.792 206Hg
Beta 0.064 210Bi
· r

Òjé (play /ˈlɛd/) je idipo ninla apilese pelu ami-idamo Pb (Látìnì: plumbum) ati nomba atomu 82.

Itokasi[àtúnṣe | àtúnṣe àmìọ̀rọ̀]