Atom bombardment ejects what appeared to be hydrogen nuclei. By 1920 he had accepted that the hydrogen nucleus is a distinct particle within the atom and named it proton. Neutrons have no electrical charge and have a free mass of 1,839 times the mass of the electron, or , the heaviest of the three constituent particles, but it can be reduced by the nuclear binding energy. Neutrons and protons (collectively known as nucleons) have comparable dimensions—on the order of —although the 'surface' of these particles is not sharply defined. The neutron was discovered in 1932 by the English physicist James Chadwick.
Atom (Ray Palmer) to restore the natives of Kandor to their full height, but is instead tricked into reviving a twisted Kryptonian cult, whose leader proceeds to crush Palmer and Kandor. Other re-imaginings of the Atom include an appearance in "League of Justice", an Elseworlds story portraying the Justice League in a "The Lord of the Rings"-type story where the Atom was recast as a wizard/fortune teller called "Atomus The Palmer". In "", Ray Palmer worked with a science consortium whose members at one point included Thomas Edison and Nikola Tesla. In "JLA: Rock Of Ages", the Atom is part of what remains