Revision as of 14:36, 5 October 2019 by imported>DePiep
[[Category:Template:Pagetype with short description]]
Einsteinium, 99Es |
| Einsteinium |
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| Pronunciation | (Template:Respell) |
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| Appearance | silvery; glows blue in the dark |
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| Mass number | [252] |
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| Einsteinium in the periodic table |
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| Atomic number (Z) | 99 |
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| Group | group n/a |
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| Period | period 7 |
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| Block | f-block |
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| Electron configuration | [Rn] 5f11 7s2 |
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| Electrons per shell | 2, 8, 18, 32, 29, 8, 2 |
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| Physical properties |
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| Phase at STP | solid |
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| Melting point | 1133 K (860 °C, 1580 °F) |
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| Boiling point | 1269 K (996 °C, 1825 °F) (estimated) |
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| Density (near r.t.) | 8.84 g/cm3 |
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| Atomic properties |
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| Oxidation states | +2, +3, +4 |
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| Electronegativity | Pauling scale: 1.3 |
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| Ionization energies | |
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| Spectral lines of einsteinium |
| Other properties |
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| Natural occurrence | synthetic |
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| Crystal structure | face-centered cubic (fcc) |
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| Magnetic ordering | paramagnetic |
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| CAS Number | 7429-92-7 |
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| History |
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| Naming | after Albert Einstein |
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| Discovery | Lawrence Berkeley National Laboratory (1952) |
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| Main isotopes of einsteinium |
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Category: Einsteinium | references |
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References
These references will appear in the article, but this list appears only on this page.
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