Òjé (
/ˈlɛd/) je idipo ninla apilese pelu ami-idamo Pb (Látìnì: plumbum) ati nomba atomu 82.
Lead, 82Pb |
| Lead |
|---|
| Pípè | /ˈlɛd/ (LED) |
|---|
| Ìhànsójú | gray |
|---|
| Ìwúwo átọ̀mù Ar, std(Pb) | 207.2(1)[1] |
|---|
| Lead ní orí tábìlì 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 at STP | solid |
|---|
| Ìgbà ìyọ́ | 600.61 K (327.46 °C, 621.43 °F) |
|---|
| Ígbà ìhó | 2022 K (1749 °C, 3180 °F) |
|---|
| Kíki (near r.t.) | 11.34 g/cm3 |
|---|
| when liquid (at m.p.) | 10.66 g/cm3 |
|---|
| Heat of fusion | 4.77 kJ/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 |
|---|
| at T (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: 175 pm |
|---|
| Covalent radius | 146±5 pm |
|---|
| Van der Waals radius | 202 pm |
|---|
 Color lines in a spectral rangeSpectral lines of lead |
| Other 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 |
|---|
| Main isotopes of lead |
|---|
| Isotope | Abundance | Half-life (t1/2) | Decay mode | Product |
|---|
| 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 |
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Àdàkọ:Category-inline
| references |
Itokasi
/ˈlɛd/) je idipo ninla apilese pelu ami-idamo Pb (Látìnì: plumbum) ati nomba atomu 82.
