Organising the metals and nonmetals

  title={Organising the metals and nonmetals},
  author={Ren{\'e} E. Vernon},
  journal={Foundations of Chemistry},
The periodic table can be simply demarcated into four classes of metal and four classes of nonmetal. Such a treatment has been obstructed by the traditional view of metalloids as in-between elements; understandable but needless boundary squabbles; and a group-by-group view of the reactive nonmetals. Setting aside these limiting notions reveals some interesting patterns and facilitates teaching and learning the periodic table. 
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