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Download full textMashhadi, Azam; Woolnough, Brian – 1998
Science has many explanatory concepts that have been proposed to account for the observable features of things. Such explanatory concepts often have associated with them hidden or unseen "theoretical entities." The electron is a key concept in understanding phenomena described by science. The question arises, however, as to how students…
Descriptors: Atomic Structure, Atomic Theory, Chemistry, Concept Formation
