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Beryllium is a chemical element; it has symbol Be and atomic number 4. It is a steel-gray, hard, strong, lightweight and brittle alkaline earth metal. It is a divalent element that occurs naturally only in combination with other elements to form minerals. Gemstones high in beryllium include beryl (aquamarine, emerald, red beryl) and chrysoberyl. It is a…
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used high beryl metal nuclear neutron also low atomic aluminium element oxide process thermal reaction compounds water forms material chemical
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Beryllium | 10Be | trace | 1.00 | infobox |
| Beryllium | 7Be | trace | 1.00 | infobox |
| Beryllium | 8Be | synth | 1.00 | infobox |
| Beryllium | 9Be | 100% | 1.00 | infobox |
| Beryllium | Appearance | white-gray metallic | 1.00 | infobox |
| Beryllium | at T (K) | 1462 | 1.00 | infobox |
| Beryllium | Atomic number (Z) | 4 | 1.00 | infobox |
| Beryllium | Atomic radius | empirical: 112 pm | 1.00 | infobox |
| Beryllium | Block | s-block | 1.00 | infobox |
| Beryllium | Boiling point | 2742 K (2469 °C, 4476 °F) | 1.00 | infobox |
| Beryllium | Brinell hardness | 590–1320 MPa | 1.00 | infobox |
| Beryllium | Bulk modulus | 130 GPa | 1.00 | infobox |
| Beryllium | CAS Number | 7440-41-7 | 1.00 | infobox |
| Beryllium | Covalent radius | 96±3 pm | 1.00 | infobox |
| Beryllium | Critical point | 5400 K, 46 MPa (estimated) | 1.00 | infobox |
| Beryllium | Crystal structure | hexagonal close-packed (hcp) (hP2) | 1.00 | infobox |
| Beryllium | Density (at 20 °C) | 1.845 g/cm3 | 1.00 | infobox |
| Beryllium | Discovery | Louis Nicolas Vauquelin (1798) | 1.00 | infobox |
| Beryllium | Electrical resistivity | 36 nΩ⋅m (at 20 °C) | 1.00 | infobox |
| Beryllium | Electron configuration | [He] 2s2 | 1.00 | infobox |
| Beryllium | Electronegativity | Pauling scale: 1.57 | 1.00 | infobox |
| Beryllium | Electrons per shell | 2, 2 | 1.00 | infobox |
| Beryllium | First isolation | Friedrich Wöhler & Antoine Bussy (1828) | 1.00 | infobox |
| Beryllium | Group | group 2 (alkaline earth metals) | 1.00 | infobox |
| Beryllium | Heat of fusion | 12.2 kJ/mol | 1.00 | infobox |
| Beryllium | Heat of vaporization | 292 kJ/mol | 1.00 | infobox |
| Beryllium | Ionization energies | 1st: 899.5 kJ/mol | 1.00 | infobox |
| Beryllium | Ionization energies | 2nd: 1757.1 kJ/mol | 1.00 | infobox |
| Beryllium | Ionization energies | 3rd: 14,848.7 kJ/mol | 1.00 | infobox |
| Beryllium | Ionization energies | (more) | 1.00 | infobox |
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