Difference between revisions of "Americium"
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covalent= | | covalent= | | ||
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| − | irad=( 3) 98 | | + | irad=(+3) 98 | |
ipot=5.99 | | ipot=5.99 | | ||
econfig=1s<sup>2</sup> <br/>2s<sup>2</sup> 2p<sup>6</sup> <br/>3s<sup>2</sup> 3p<sup>6</sup> 3d<sup>10</sup> <br/>4s<sup>2</sup> 4p<sup>6</sup> 4d<sup>10</sup> 4f<sup>14</sup> <br/>5s<sup>2</sup> 5p<sup>6</sup> 5d<sup>10</sup> 5f<sup>7</sup> <br/> 6s<sup>2</sup> 6p<sup>6</sup> <br/>7s<sup>2</sup> | | econfig=1s<sup>2</sup> <br/>2s<sup>2</sup> 2p<sup>6</sup> <br/>3s<sup>2</sup> 3p<sup>6</sup> 3d<sup>10</sup> <br/>4s<sup>2</sup> 4p<sup>6</sup> 4d<sup>10</sup> 4f<sup>14</sup> <br/>5s<sup>2</sup> 5p<sup>6</sup> 5d<sup>10</sup> 5f<sup>7</sup> <br/> 6s<sup>2</sup> 6p<sup>6</sup> <br/>7s<sup>2</sup> | | ||
Revision as of 18:52, 9 July 2007
| Americium | |
|---|---|
| Am | |
| In situ availability: | |
| Necessity: | |
| Atomic number: | 95 |
| Atomic mass: | [243] |
| group: | 19 |
| period: | N/A |
| normal phase: | Solid |
| series: | Actinide |
| density: | 12 g/cm3 |
| melting point: | 1449K, 1176°C, 2149°F |
| boiling point: | 2880K, 2607°C, 4725°F |
| Sm ← Eu → Gd | |
| Pu ← Am → Cm | |
| N/A ← N/A → N/A | |
| Atomic radius (pm): | 175 |
| Bohr radius (pm): | |
| Covalent radius (pm): | |
| Van der Waals radius (pm): | |
| ionic radius (pm): | (+3) 98 |
| 1st ion potential (eV): | 5.99 |
| Electron Configuration | |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f7 6s2 6p6 7s2 | |
| Electrons Per Shell | |
| 2, 8, 18, 32, 25, 8, 2 | |
| Electronegativity: | |
| Electron Affinity: | - |
| Oxidation states: | 6, 5, 4, 3 |
| Magnetism: | ? |
| Crystal structure: | Hexagonal |
Americium is a Actinide metal.
It has a Hexagonal crystalline structure.
It does not have any isotopes considered to be natural. Its longest-lived known isotope has an atomic number of 243.
This element has no stable isotopes.
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