Our knowledge of the atomic weight of this element depends chiefly upon the elaborate and carefully executed work of Seubert4 and Halberstadt,5 and the only question is how this is to be interpreted.

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"Neon, as has been already pointed out, consists of isotopic elements of atomic weights 20 and 22. The mass-spectra obtained when chlorine is present cannot be treated in detail here, but they ...

Amid the long-dormant remains of the Iron Range’s glory days, Minnesota’s first new steel mill since the Duluth Works steel ...

He isolated it in 1901, and ended the note in which he reported this discovery with “I propose for the new element the name europium, with symbol Eu, and atomic weight 151 (approx.)” ...

Copyright 2025 The Associated Press. All Rights Reserved. Three survivors of the U.S. atomic bombings of Japan collected the 2024 Nobel Peace Prize on Tuesday on ...

On October 8, U of T Computer Science Professor Emeritus Geoffrey Hinton was sitting in a cheap hotel room in California when ...

Niels Bohr's Nobel Lecture on December 11, 1922, titled The Structure of the Atom, is one of the most significant contributions to our understanding of atomic structure and quantum mechanics.

Heavy water is a form of water with a unique atomic structure and properties coveted ... both of heavy water and of isotopes—atoms of an element that have the same number of protons but a ...