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From Self-sufficiency
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26 KB (3,758 words) - 09:14, 20 September 2010
- ...3 are the most common. It forms binary compounds with the halogens and the chalcogens. Among its organometallic compounds, [[ferrocene]] was the first [[sandwich67 KB (9,808 words) - 09:24, 20 September 2010
- ...production of metallic arsenic. Further purification from sulfur and other chalcogens is achieved by sublimation in vacuum or in a hydrogen atmosphere or by dist51 KB (7,314 words) - 20:34, 20 September 2010
