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He proposed the wave-particle duality for the electrons.
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.
an atom has electrons in discrete energy levels
He determined the number of positive charges in the nucleus of an atom. He was the first one to bring the concept of atomic number.
Any atomic theory from B. Franklin.
Atomic Theory
That the cake is a lie.
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
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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.
His atomic theory. He was the one who thought that there were atoms in everything.
James Chadwick discovered the neutron in 1932.
he helped the creator of electrons and the studier of chemistry
He proposed the wave-particle duality for the electrons.