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Students use the terms isotope, atomic number, mass number, and atomic mass. Atomic Theory: Structure of the Atom: Students use the terms isotope, atomic number, mass number, and atomic mass to ...

The original suggestion of van der Broek that the charge on the nucleus is equal to the atomic number and not to half the atomic weight seems to me very promising. This idea has already been used by ...

PROF. ANDRADE'S well-known introduction to atomic physics has been very largely rewritten for this (the third) edition, and the size of the work has been approximately doubled. Some of the discussions ...