an atom has electrons in discrete energy levels
He proposed the wave-particle duality for the electrons.
Bohr devoleped a model of the atom that predicts how it will behave.
Dalton's atomic theory was a major contribution to discover the atomic structure in despite of been completely counterproved.
What important contribution did Lavoisier make to Dalton's atomic theory of matter? Lavoisier helped the atomic theory of matter, by stating that matter is not destroyed or created, it just changes form. Located inside the nucleus, has a positive charge, and 1 amu.
John Dalton was BEST remembered for his pioneering work in the development of modern atomic theory.
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.
He contributed the modern symbols of elements (Ce, Se, Si, Th)
Atomic Theory
That the cake is a lie.
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
The most important contribution of Werner Heisenberg was the discovery of the uncertainty principle.
he contributed by creating milk
See the link below
he was wrong
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.
he helped the creator of electrons and the studier of chemistry