Professional paper
https://doi.org/10.15255/KUI.2020.055
How to Acquire an Idea of the Size of Atoms and Ions
Milan Sikirica
orcid.org/0000-0003-1179-112X
; Division of General and Inorganic Chemistry, Department of Chemistry Faculty of Science, University of Zagreb Horvatovac 102a, 10 000 Zagreb, Croatia
Abstract
Chemistry teaching uses quantities such as the picometer and Avogadro number. Teachers easily pronounce or write, and students learn to reproduce these quantities by heart, without any idea of how much numbers like 10–12 or 1023 actually are. This paper shows how students can, by solving simple problems, learn independently about the size of atoms and the meaning of Avogadro’s number. In the present digital age, “distance learning” and digitised textbooks, modern school does not need standard “classes” but laboratories, workshops, sports halls, and sports fields, where students could acquire knowledge, skills, and abilities by exerting their activities.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Keywords
chemistry education; HCP and FCC crystal structures; atomic and ionic radii; interstitial holes; solved exercise questions
Hrčak ID:
250599
URI
Publication date:
24.1.2021.
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