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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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Peer reviewed Peer reviewed
ERIC Number: EJ318989
Record Type: CIJE
Publication Date: 1985
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
Periodic and Aperiodic Close Packing: A Spontaneous Hard-Sphere Model.
van de Waal, B. W.
Journal of Chemical Education, v62 n4 p293-94 Apr 1985
Shows how to make close-packed models from balloons and table tennis balls to illustrate structural features of clusters and organometallic cluster-compounds (which are of great interest in the study of chemical reactions). These models provide a very inexpensive and tactile illustration of the organization of matter for concrete operational individuals. (JN)
Descriptors: Chemical Reactions, Chemistry, College Science, Higher Education, Metals, Models, Molecular Structure, Science Education
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: Teachers; Practitioners
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: N/A