Lát'ọwọ́ Wikipedia, ìwé ìmọ̀ ọ̀fẹ́
| Lead |
|
82Pb
|
|
|
| Ìhànsójú |
gray
 |
| Àwọn ìdámọ́ wíwọ́pọ̀ |
| Orúkọ, àmì-ìdámọ́, nọ́mbà |
lead, Pb, 82 |
| Ìpèlóhùn |
/ˈlɛd/, led |
| Ẹ̀ka ẹ́límẹ̀nti |
post-transition metal |
| Ẹgbẹ́, àsìkò, àdìpò |
14, 6, 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
|
| 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 |
|
|
|
· r |
Òjé (
/ˈlɛd/) je idipo ninla apilese pelu ami-idamo Pb (Látìnì: plumbum) ati nomba atomu 82.
/ˈlɛd/) je idipo ninla apilese pelu ami-idamo Pb (Látìnì: plumbum) ati nomba atomu 82.
