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| Version | User | Scope of changes |
|---|---|---|
| Oct 22 2006, 12:57 AM EDT (current) | khaledali | 1 photo added |
| Oct 22 2006, 12:54 AM EDT | khaledali | 4 words added, 4 words deleted |
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My Nucleus 84 protons 125 neutrons isotopes half life PO-206 8.8 days PO-207 5.8 hours PO-208 2.89 years PO-209 102.0 years PO-210 138.83 days PO-211 0.51 seconds PO-212 0.29 microseconds PO-213 4.0 microseconds PO-214 163.7 microseconds PO-215 1.78 microseconds PO-216 0.14 seconds PO-218 3.1 minutes | My Electrons you can see that polonium has 84 electrons, and 6 valence electrons.  | My Properties Color: silvery Class: Metalloid Atomic Mass: (209.0) amu Melting Point: 254.0 Celsius, 489.2 Fahrenheit Boiling Point 962.0 Celsius 1763.6 Fahrenheit Density 293 K:9.4 g/cm3  |
| My Home (Body, Planet, Universe) Universe: no data Sun: no data Crustal rocks: no data Sea Water:0.00000000002 weight and atoms 0.0000000000006 | I am Polonium! It has been used to clean dust of films and been found in tobacco smokes. polonium is also a radioactive chemical element. polonium is an extremely rare element that is found in uranium ores. | My Compounds (My Friends!) Hydrogen Fluorine Chlorine Bromine Iodine Oxygen Sulfur Selenium Tellurium Nitrogen Carbon |
| The chemise that found my element is Maie Curie it was discovered in France in 1898. Polonium was named after my chemist home country Poland. | My Jobs | Videos |
