Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 694
2X4* elements. Period 7 Eka-Cs-U incomplete. Fig. 25 shows the same periodicity in some of the physicalproperties; compressibilities, atomic volumes, coefficients of ex-pansion, and melting points—when plotted against the atomicnumber. All of these relate to the planetary system of electrons. A… … Periodic table by W. D. Harkins. 6/6 William D. Harkixs. [J. F. I. at Fig. 26, which plots the specific magnetic susceptibilities of theelementary substances against the atomic number, shows thatthere is considerable resemblance to Fig. 24, but none to any formof figure which represents nuclear…
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