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Scientific American Supplement - No. 288
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CARBON.—SYMBOL C.—COMBINING WEIGHT 12.By T.A. POOLEY, B.Sc., F.C.S.
This element, which next deserves our attention, is one of great importance and wide distribution; it occurs in nature in both the free and the combined states, and the number of compounds which it forms with other elements is very large. Unlike the previous elementary bodies we have studied, carbon is only known to us in the solid form when free, although many of its combinations are gaseous at the ordinary temperature and pressure. Carbon is known to exist in several different physical states, thus illustrating what chemists call allotropism, which means that subs. . . Read More
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