XXth century_physics

”Should the α particle be composed of 4(H + ) + 2 electrons,
then the number of nuclear electrons should be for U 142,
that of the positive units 238, and, 380 particles occupying
about 2.7•10 -35 c.cm., the positive unit must be of equal
size, if not identical with the electron (0.5•10 -37 ), but in
a different state.”
Antonius Van den Broek - On Nuclear Electrons, Phil. Mag. (1913)
”...the nucleus, though of minute dimensions, is in itself
a very complex system consisting of a number of positively
and negatively charged bodies bound together by intense
electric forces...”
Ernest Rutherford, Scientia, 16, 337 (1914)