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An allegory on molecular periodicity

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Notes

  1. Each person, irrespective of gender, represents a different elemental atom.

  2. Atomic number; this number uniquely identifies atoms whatever their other properties may be.

  3. So it was that the use of atomic numbers corrected erroneous placements based on atomic weights.

  4. The periodic table of the elements is considered one of the foundations of chemistry.

  5. Bonded with, as atoms in diatomic molecules.

  6. To what extend do atoms retain their identities in molecules [the central question of Atoms in Molecules theory (Bader 1991).

  7. She did it on purpose, using only six of the seven rows to get parameters that yielded good predictions of the compatibility coefficients, and then using the parameters on the seventh row. This procedure is called “save out one,” meaning save out one case for an determination of precision.

  8. the resulting predictions, compared with those of the regression methods, made it possible to determine the precision of the method (the random errors).

  9. Another name for independent variables.

  10. Large biological molecules.

  11. This work does allow estimates of vast numbers of spectroscopic constants.

  12. There is a group theory in sociology, and quite another used for the mathematical analysis of symmetries.

  13. In the first attempts to fit data to diatomic-molecular multiplets derived from group theory on molecules, such a skewed surface did frustrate prediction settled down, our Guatemalan chemist continued “As I was saying before the rude interruption—Tall, Medium, and Short obviously are characteristics that simply couldn’t exist in two dimensions! I will start over with nine flat men and nine flat women, and the five remaining marriages, and predict what happens if any other combinations of villagers marry.”.

  14. Sages, teachers.

  15. Dr. Charles Janet is recognized in many French books as the author of the left-step periodic table of the elements (2009).

  16. Dr. Baca Mendoza is highly respected in Peru for his version of the periodic table of the elements (Mendoza 1953).

  17. Presumably the Ten Commandments and the periodic table of the elements.

  18. The Bible claims that God spoke to Moses from a burning bush.

  19. It is not clear to whom “He” refers; the capitalization is supplied.

  20. “no longer” may refer to the clearing of the jungle after Machu Picchu was found by an American explorer, after centuries of neglect, in 1904.

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Correspondence to Ray Hefferlin.

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Ray Hefferlin—Deceased

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Hefferlin, R. An allegory on molecular periodicity. Found Chem 20, 43–49 (2018). https://doi.org/10.1007/s10698-017-9295-2

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