The Elements (song) - Wikipedia
https://en.wikipedia.org/wiki/The_Elements_(song)The ordering of elements in the lyrics fits the meter of the song, and includes much alliteration, and thus has little or no relation to the ordering in the periodic table. This can be seen for example in the opening and closing lines: Lehrer had been a mathematics student and lecturer at Harvard; in the closing lines of the song, he pronounced "Harvard" and "discovered" in a parody of the non-rhotic Boston accentto make th…