Difference between revisions of "Polonium"
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phase=Solid | | phase=Solid | | ||
series=Metalloids | | series=Metalloids | | ||
| − | density=(alpha) 9.196 g/cm3(beta) 9.398 g/cm3 | | + | density=(alpha) 9.196 g/cm3<BR/>(beta) 9.398 g/cm3 | |
melts=527K,<BR/>254°C,<BR/>489°F | | melts=527K,<BR/>254°C,<BR/>489°F | | ||
boils=1235K,<BR/>962°C,<BR/>1764°F | | boils=1235K,<BR/>962°C,<BR/>1764°F | | ||
| Line 21: | Line 21: | ||
below=[[Ununhexium|<FONT color="#7F7FFF">Uuh</FONT>]] | | below=[[Ununhexium|<FONT color="#7F7FFF">Uuh</FONT>]] | | ||
bprior=[[Ununpentium|<FONT color="#7F7FFF">Uup</FONT>]] | | bprior=[[Ununpentium|<FONT color="#7F7FFF">Uup</FONT>]] | | ||
| − | bnext=[[Ununseptium| | + | bnext=[[Ununseptium|Uus]] | |
radius=190 | | radius=190 | | ||
bohr=135 | | bohr=135 | | ||
Latest revision as of 20:29, 11 February 2007
| Polonium | |
|---|---|
| Po | |
| In situ availability: | |
| Necessity: | |
| Atomic number: | 84 |
| Atomic mass: | [210] |
| group: | 16 |
| period: | 6 |
| normal phase: | Solid |
| series: | Metalloids |
| density: | (alpha) 9.196 g/cm3 (beta) 9.398 g/cm3 |
| melting point: | 527K, 254°C, 489°F |
| boiling point: | 1235K, 962°C, 1764°F |
| Sb ← Te → I | |
| Bi ← Po → At | |
| Uup ← Uuh → Uus | |
| Atomic radius (pm): | 190 |
| Bohr radius (pm): | 135 |
| Covalent radius (pm): | |
| Van der Waals radius (pm): | |
| ionic radius (pm): | (+4) - |
| 1st ion potential (eV): | 8.42 |
| Electron Configuration | |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 6p4 | |
| Electrons Per Shell | |
| 2, 8, 18, 32, 18, 6 | |
| Electronegativity: | 2 |
| Electron Affinity: | 1.9 |
| Oxidation states: | 4, 2 |
| Magnetism: | Nonmagnetic |
| Crystal structure: | Cubic |
Polonium is a Metalloid in group 16.
It has a Cubic crystalline structure.
It does not have any isotopes considered to be natural. Its longest-lived known isotope has an atomic number of 210.
This element has no stable isotopes.
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