In 1869, Dmitri Mendeleev listed the elements in order of increasing atomic weight and grouped elements that seemed to have similar chemical reactions.
He published it in 1803
His atomic theory. He was the one who thought that there were atoms in everything.
Niels Bohr.Father Roger Boscovich is often credited as the father of modern atomic theory, according to Thomas E. Woods, Jr., author of the book How the Catholic Church Built Western Civilization
was wandering the smae thing but i think they just developed rutherfords theory by doing the gold foil experiment in depth
john dalton develop an atomic theory in 1803, based on idea of the atomic exsiting
Dalton's Atomic Theory
Atomic Theory
That the cake is a lie.
J.J Thomoson was the one that published it
john dalton developed the atomic theory , which he published in 1803
published his atomic theory describing the atom as having a central positive nucleus surrounded by negative orbiting electrons. or so my book says...
Antoine Lavoisier was a French nobleman and chemist. His contribution to the development of the modern atomic theory was his idea of the possibility of an Atomic Mass.
The most important contribution of Werner Heisenberg was the discovery of the uncertainty principle.
he contributed by creating milk
See the link below
john dalton developed the atomic theory , which he published in 1803
The contribution of anyone prior to about 1600 to the development of atomic theory might as well be "nothing whatsoever." Democritus and/or Leucippus contributed the name "atomos", but not much else; they were wrong about nearly every detail. John Dalton is just about the earliest scientist to have had any significant contribution to atomic theory, and most of what we now consider atomic theory was developed since about 1900.
James Chadwick discovered the neutron in 1932.