%0 Journal Article %T Student Understanding of Some Quantum Physical Concepts %A Serap £¿al£¿£¿kan %A Gamze Sezgin Sel£¿uk %J Latin-American Journal of Physics Education %D 2009 %I Instituto Polit¨¦cnico Nacional, Latin American Physics Education Network %X In spite of nearly a century, quantum physics and quantum phenomena seem to be having some difficulties toinfluence the human brain and logic hence some considerable effort has recently been spending to overcome suchdifficulties. As a part of the international efforts, we composed a questionnaire named as Quantum ConceptsQuestionnaire (QCQ) to investigate student ideas about some concepts in quantum physics and quantum phenomena.In this work, the concepts of electron, wave function, wave-particle duality and structure of atom are specificallyinvestigated and obtained data are statistically analysed. The QCQ is administered to 71 undergraduate students allcompleted the quantum physics course at Education Faculty of Buca, Dokuz Eyl¨¹l University in Izmir, Turkey. Finallysome important outcomes of the research are presented, discussed and certain suggestions are briefly made. %K Physics education %K Quantum physics %K Understanding %U http://www.journal.lapen.org.mx/May09/LAJPE%20258%20preprint%20f.pdf