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Antimony |
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Pípè | |
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Ìhànsójú | silvery lustrous gray |
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Ìwúwo átọ̀mù Ar, std(Sb) | 121.760(1)[1] |
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Antimony ní orí tábìlì àyè |
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|
Nọ́mbà átọ̀mù (Z) | 51 |
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Ẹgbẹ́ | group 15 (pnictogens) |
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Àyè | àyè 5 |
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Àdìpọ̀ | Àdìpọ̀-p |
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Ẹ̀ka ẹ́límẹ́ntì | Metalloid |
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Ìtò ẹ̀lẹ́ktrọ́nù | [Kr] 4d10 5s2 5p3 |
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Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan | 2, 8, 18, 18, 5 |
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Àwọn ohun ìní ara |
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Ìfarahàn at STP | solid |
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Ìgbà ìyọ́ | 903.78 K (630.63 °C, 1167.13 °F) |
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Ígbà ìhó | 1860 K (1587 °C, 2889 °F) |
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Kíki (near r.t.) | 6.697 g/cm3 |
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when liquid (at m.p.) | 6.53 g/cm3 |
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Heat of fusion | 19.79 kJ/mol |
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Heat of | 193.43 kJ/mol |
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Molar heat capacity | 25.23 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)
|
807
|
876
|
1011
|
1219
|
1491
|
1858
|
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|
Atomic properties |
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Oxidation states | −3, −2, −1, 0,[2] +1, +2, +3, +4, +5 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment |
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Electronegativity | Pauling scale: 2.05 |
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energies | |
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Atomic radius | empirical: 140 pm |
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Covalent radius | 139±5 pm |
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Van der Waals radius | 206 pm |
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Spectral lines of antimony |
Other properties |
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Natural occurrence | primordial |
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Crystal structure | rhombohedral |
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Speed of sound thin rod | 3420 m/s (at 20 °C) |
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Thermal expansion | 11 µm/(m·K) (at 25 °C) |
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Thermal conductivity | 24.4 W/(m·K) |
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Electrical resistivity | 417 n Ω·m (at 20 °C) |
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Magnetic ordering | diamagnetic[3] |
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Young's modulus | 55 GPa |
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Shear modulus | 20 GPa |
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Bulk modulus | 42 GPa |
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Mohs hardness | 3.0 |
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Brinell hardness | 294 MPa |
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CAS Number | 7440-36-0 |
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Main isotopes of antimony |
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Àdàkọ:Category-inline | references |