Wells and Jensen's classification of substances according to structure type is quantified, enabling substances having an intermediate structure to be classified precisely. Jensen's concept of the "degree of nonmolecularity" of a substance and the opposite quality, degree of molecular character, are also quantified. Molecular character is combined with electrical character to produce a new classification of substances. This is similar to, but more securely based than, classifications involving bond type and can be used to introduce the latter.
Our Secondary School editors work hard to distill all the JCE materials to produce a fraction of particular interest to high school teachers. We call it CLIC.
In recent years we have worked hard to better match our advertisers with our readers. When shopping for chemistry education materials, visit our advertisers' WWW sites first.
Take JCE along on your outreach missions. Copies of the Journal, guest access to JCE Online, our publications catalog, and more are available for your participants.