Is it Possible to Observe Orbitals? On the Problems of Observability and Reality of Theoretical Entities Cover Image

Czy można zaobserwować orbitale? O problemie obserwowalności i realności przedmiotów teoretycznych
Is it Possible to Observe Orbitals? On the Problems of Observability and Reality of Theoretical Entities

Author(s): Paweł Zeidler
Subject(s): Philosophy
Published by: Uniwersytet Warszawski - Wydział Filozofii i Socjologii, Instytut Filozofii
Keywords: theoretical entities; atomic and molecular orbitals; electron density; direct and indirect observability; realism-antirealism debate; laboratory practice of chemistry

Summary/Abstract: In September 1999 „Nature” magazine announced that atomic orbitals were directly observed. Opposing it, Eric Scerri, editor-in-chief of „Foundations of Chemistry”, claimed that what could be observed in the experiment was electron density, not orbitals. The main purpose of this paper is to consider philosophical and methodological aspects of the above controversy. Especially, the problems of direct observability and reality of theoretical entities are taken under detailed discussion. From the point of view of quantum mechanics there are not any reasons to believe that orbitals exist. However, realistically treated orbitals are very effective tools in the laboratory practice of chemistry.

  • Issue Year: 18/2010
  • Issue No: 4 (72)
  • Page Range: 5-22
  • Page Count: 18
  • Language: Polish