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Show Hafnium Atoms Weighed. Nils Bohr, discoverer of the new element, hafnium, has determined its atomic weight. The element which was named in honor of the city of Copenhagen, is still not completely isolated, iso-lated, but the professor's efforts in this direction are nearing completion. The connection of the element with zirconium, zirconi-um, a kindred element, has made investigations in-vestigations difficult, but Professor Bohr has been able to ascertain that the atomic weight lies between 179 and 181. Five of 92 elements existent remain re-main to be discovered. As a result of his experiments, Professor Pro-fessor Bohr has discovered that hafnium hafni-um is Impenetrable by Rontgen rays. He asserts it has the good qualities of bismuth, which Is used in connection with Rontgen-ray experiments, but none of the bad ones, and the discovery discov-ery is expected to be of considerable value to medical science. |