| Scienceray > Chemistry |
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Chemistry |
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 | | Lutetium | | by Ashley Rogers, Jan 19, 2007 | | The symbol for lutetium is Lu, its atomic number is 71, and its atomic weight is 174.967 g. Lutetium is a metallic element and it is found in the rare earth group. | | Comments(0) Liked It: 1 |
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 | | Ionic Compounds | | by Ashley Rogers, Dec 23, 2006 | | Ionic compounds consist of cations and anions. Cations are positively charged ions. Anions are negatively charged ions. | | Comments(1) Liked It: 0 |
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 | | Chemical exposure | | by egortizv, Dec 4, 2006 | | Article i wrote about a chemical exposer incident i found. (carbon monoxide poisoning) | | Comments(0) Liked It: 5 |
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