| Hello. I am Jöns Jacob Berzelius. In 1812, I published a theory of chemical combination based on the attraction between positive and negative charges. My Dualistic Theory assumed that chemical and electrical attraction were identical. Compounds were combinations of positive and negative parts. The next screen will let you try this theory. It works very well for minerals. |  |
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Jöns Jacob Berzelius
(1779-1848) |