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Zinc |
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Ìhànsójú | silvery gray |
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Ìwúwo átọ̀mù Ar, std(Zn) | 65.38(2)[1] |
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Zinc ní orí tábìlì àyè |
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Nọ́mbà átọ̀mù (Z) | 30 |
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Ẹgbẹ́ | group 12 |
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Àyè | àyè 4 |
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Àdìpọ̀ | Àdìpọ̀-d |
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Ẹ̀ka ẹ́límẹ́ntì | Post-transition metal |
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Ìtò ẹ̀lẹ́ktrọ́nù | [Ar] 3d10 4s2 |
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Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan | 2, 8, 18, 2 |
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Àwọn ohun ìní ara |
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Ìfarahàn at STP | solid |
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Ìgbà ìyọ́ | 692.68 K (419.53 °C, 787.15 °F) |
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Ígbà ìhó | 1180 K (907 °C, 1665 °F) |
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Kíki (near r.t.) | 7.14 g/cm3 |
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when liquid (at m.p.) | 6.57 g/cm3 |
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Heat of fusion | 7.32 kJ/mol |
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Heat of | 123.6 kJ/mol |
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Molar heat capacity | 25.470 J/(mol·K) |
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pressure
P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
|
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at T (K)
|
610
|
670
|
750
|
852
|
990
|
1179
|
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Atomic properties |
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Oxidation states | −2, 0, +1, +2 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment |
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Electronegativity | Pauling scale: 1.65 |
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energies | |
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Atomic radius | empirical: 134 pm |
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Covalent radius | 122±4 pm |
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Van der Waals radius | 139 pm |
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Spectral lines of zinc |
Other properties |
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Natural occurrence | primordial |
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Crystal structure | hexagonal |
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Speed of sound thin rod | (rolled) 3850 m/s (at r.t.) |
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Thermal expansion | 30.2 µm/(m·K) (at 25 °C) |
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Thermal conductivity | 116 W/(m·K) |
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Electrical resistivity | 59.0 n Ω·m (at 20 °C) |
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Magnetic ordering | diamagnetic |
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Young's modulus | 108 GPa |
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Shear modulus | 43 GPa |
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Bulk modulus | 70 GPa |
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Poisson ratio | 0.25 |
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Mohs hardness | 2.5 |
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Brinell hardness | 412 MPa |
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CAS Number | 7440-66-6 |
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Main isotopes of zinc |
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Àdàkọ:Category-inline | references |