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Caesium (IUPAC spelling; also spelled cesium in American English) is a chemical element; it has symbol Cs and atomic number 55. It is a soft, silvery-golden alkali metal with a melting point of 28.5 °C (83.3 °F; 301.6 K), which makes it one of only five elemental metals that are liquid at or near room temperature. Caesium has physical and chemical…
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cs used metal metals also alkali element chloride rubidium caesium-137 water potassium compounds pollucite stable nuclear applications sodium isotopes atomic
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Caesium | 131Cs | synth | 1.00 | infobox |
| Caesium | 133Cs | 100% | 1.00 | infobox |
| Caesium | 134Cs | synth | 1.00 | infobox |
| Caesium | 135Cs | trace | 1.00 | infobox |
| Caesium | 137Cs | synth | 1.00 | infobox |
| Caesium | Alternative name | cesium (US) | 1.00 | infobox |
| Caesium | Appearance | pale gold | 1.00 | infobox |
| Caesium | at T (K) | 418 | 1.00 | infobox |
| Caesium | Atomic number (Z) | 55 | 1.00 | infobox |
| Caesium | Atomic radius | empirical: 265 pm | 1.00 | infobox |
| Caesium | Block | s-block | 1.00 | infobox |
| Caesium | Boiling point | 944 K (671 °C, 1240 °F) | 1.00 | infobox |
| Caesium | Brinell hardness | 0.14 MPa | 1.00 | infobox |
| Caesium | Bulk modulus | 1.6 GPa | 1.00 | infobox |
| Caesium | CAS Number | 7440-46-2 | 1.00 | infobox |
| Caesium | Covalent radius | 244±11 pm | 1.00 | infobox |
| Caesium | Critical point | 1938 K, 9.4 MPa | 1.00 | infobox |
| Caesium | Crystal structure | body-centred cubic (bcc) (cI2) | 1.00 | infobox |
| Caesium | Density (at 20° C) | 1.886 g/cm3 | 1.00 | infobox |
| Caesium | Discovery | Gustav Kirchhoff and Robert Bunsen (1860) | 1.00 | infobox |
| Caesium | Electrical resistivity | 205 nΩ⋅m (at 20 °C) | 1.00 | infobox |
| Caesium | Electron configuration | [Xe] 6s1 | 1.00 | infobox |
| Caesium | Electronegativity | Pauling scale: 0.79 | 1.00 | infobox |
| Caesium | Electrons per shell | 2, 8, 18, 18, 8, 1 | 1.00 | infobox |
| Caesium | First isolation | Carl Setterberg (1882) | 1.00 | infobox |
| Caesium | Group | group 1: hydrogen and alkali metals | 1.00 | infobox |
| Caesium | Heat of fusion | 2.09 kJ/mol | 1.00 | infobox |
| Caesium | Heat of vaporization | 63.9 kJ/mol | 1.00 | infobox |
| Caesium | Ionization energies | 1st: 375.7 kJ/mol | 1.00 | infobox |
| Caesium | Ionization energies | 2nd: 2234.3 kJ/mol | 1.00 | infobox |
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