Nitrogen, Phosphorus, Arsenic, Antimony, Bismuth
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The gas nitrogen (N) makes up some 78 per cent by volume of the atmosphere. It occurs in combination in two principal types of minerals, the nitrates and the ammonium minerals.
KeywordsOpen Tube Antimony Trioxide Native Bismuth Arsenic Mineral Native Arsenic
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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© George Allen & Unwin (Publishers) Ltd. 1970