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Disuse of the terms alkali and alkaline

by retired

May 4, 2014

I believe I have posted about this before, but the answers were unsatisfactory. When I was in high school and college, alkali was the preferred term and base was disfavored. The consensus was that alkali as a term had only the chemical definition while base has has many other definitions unrelated to chemistry, thereby making alkali the more precise term. I agree with this idea. There is a good reason AA dry cells aren't called "basic" batteries!

However, when I started teaching in '84, base was being used more often among the high school teachers (south Georgia, if it matters). In the last round of physical science textbooks, ancillaries, and Georgia Performance Standards we had, the only place alkali was used was in "alkali metals" and "alkaline earth metals" on the periodic table in the textbook only. Nowhere else in the book were alkali or alkaline even mentioned, much less why those groups were named such.

I realize a good science teacher will educate the student...See More

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