Kraska, Thomas 
ORCID: 0000-0001-5098-7534
.
Wave mechanics fundaments for quantum chemistry in secondary education.
ChemKon.
WEINHEIM:
WILEY-V C H VERLAG GMBH.
ISSN 1521-3730
Abstract
While quantum chemistry is the standard model for treating a chemical bond in chemical science for about one hundred years, its application in secondary education is still limited. Especially the introduction of wave properties of matter is often neglected. The complexity of this topic makes it necessary to treat it exemplary. Simple models with infinitely high potential walls and vanishing potential energy inside can serve as suggestion for teachers to teach the subject. The mathematical modeling is restricted to the sinus function and therefore suitable for the upper secondary level. The foundation of bond formation is the interference of electronic wave functions taking place when waves come close as atoms approach. Interference then leads to a redistribution of the charge. In case, this redistribution takes up more space than available before, the kinetic energy decreases. In addition, the redistribution of the charge leads to changes in the potential energy. This is the background for a series of rules and effects in high school chemistry that are often introduced without relation to each other. Even though the topic is rather located in upper secondary education, in middle secondary education the wave property of matter can be introduced phenomenologically equivalent to particle properties in a preparatory manner.
| Item Type: | Journal Article | ||||||||
| Creators: |
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| URN: | urn:nbn:de:hbz:38-567066 | ||||||||
| DOI: | 10.1002/ckon.202100037 | ||||||||
| Journal or Publication Title: | ChemKon | ||||||||
| Publisher: | WILEY-V C H VERLAG GMBH | ||||||||
| Place of Publication: | WEINHEIM | ||||||||
| ISSN: | 1521-3730 | ||||||||
| Language: | German | ||||||||
| Faculty: | Unspecified | ||||||||
| Divisions: | Unspecified | ||||||||
| Subjects: | no entry | ||||||||
| Uncontrolled Keywords: |
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| URI: | http://kups.ub.uni-koeln.de/id/eprint/56706 |
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