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General information about Polonium |
| Polonium |
| Po |
| 84 |
| Metalloids |
| 16 |
| 6 |
| p |
| Silvery |
| (209) g·mol-1 |
1s2 2s2p6 3s2p6d10 4s2p6d10
f14 5s2p6d10 6s2p4 |
| 2, 8, 18, 32, 18, 6 |
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Physical properties of Polonium |
| solid |
(alpha) 9.196 g·cm-3
(beta) 9.398 g·cm-3 |
| 527(K),
254°C, 489 °F |
| 1235(K),
962°C, 1764 °F |
| ? |
| ? |
| ca. 13 kJ·mol-1 |
| 102.91 kJ·mol-1 |
| 26.4 J·mol-1·K-1 |
| 2.00 (Pauling scale) |
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Atomic structure of Polonium |
| 1.53 Å |
| 22.23 cm³/mol |
| 1.46 Å |
| 0.03 |
| Monoclinic |
| ? |
| 6p4 |
| 84 |
| 125 |
| 84 |
| 4, 2 |
| 6s2p4 |
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Electron dot
model |
Other languages |
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| Latin: |
Polonium |
| Czech: |
Polonium |
| Croatian: |
Polonij |
| French: |
Polonium |
| German: |
Polonium - s |
| Italian: |
Polonio |
| Norwegian: |
Polonium |
| Portuguese: |
Polônio |
| Spanish: |
Polonio |
| Swedish: |
Polonium |
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| Element |
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84 |
2
8
18
32
18
6
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Po |
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(209) |
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Brief description |
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Polonium-210 emits alpha particles, which can damage or destroy genetic material inside of cells. Isotopes that emit alpha particles are toxic if they are ingested or inhaled because the alpha particles are very reactive, but polonium isn't absorbed through the skin, nor does the alpha radiation penetrate deeply. Polonium generally is considered toxic only if taken internally (breathing, eating, through an open wound).
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Uses of Polonium |
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Polonium is very radioactive alpha emitter. Half of a gram in an enclosed space can produce a temperature of 500 C (140W/g). The maxiumum amount a human can ingest is only 6.8 x 10-12 g. Polonium is very soluble in dilute acids, but only slightly soluble in alkalis. Traces are found in Uranium ores (100 micrograms Polonium/ton of Uranium) in the Earth's crust.
Used for nuclear batteries, neutron source, antistatic agents, film cleaner.
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Hystory of Polonium |
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- Discoverer: Marie and Pierre Curie
- Discovery Location: France, Paris
- Discovery Year: 1898
- Name Origin: Named after Poland. It was home country of M. Curie.
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