The work function of the elements and its periodicity

TLDR

The authors compiled a new dataset of work‑function measurements for 44 elements, selecting preferred values from literature (1969–1976) under valid experimental conditions, and supplemented it with accepted older values for 19 elements lacking recent data. The compiled data reveal systematic trends across both rows and columns of the periodic table, enabling accurate predictions of work functions and the detection of questionable measurements, as demonstrated by examples that confirm 1950 predictions.

Abstract

A new compilation, based on a literature search for the period 1969–1976, is made of experimental data on the work function. For these 44 elements, preferred values are selected on the basis of valid experimental conditions. Older values, which are widely accepted, are given for 19 other elements on which there is no recent literature, and are so identified. In the data for the 63 elements, trends that occur simultaneously in both the columns and the rows of the periodic table are shown to be useful in predicting correct values and also for identifying questionable data. Several illustrative examples are given, including verifications of predictions published in 1950.