460-360bc
The first atomic model was proposed by the Greek philosopher Democritus in 442 BC.
Joseph John Thomson proposed his plum pudding model Of atom in the year of 1904.
J.J. Thompson's model of the atom, often refered to as the "plum pudding model" due to it's random distribution of electrons throughout the atom, suggested that negatively charged electrons were scattered about a positively charged jelly-like substance, with the charge from the positive material canceling out the negative charge from the electrons.
The ''plum pudding atomic model" is from J. J. Thomson, year 1904.
He didn't exactly "discover" the nucleus. In 1911 he theorized about the atom having its positive charges in a very small nucleus. In 1921 he postulated about the existence of the neutron in the nucleus. The first experiment to split the atom in a controlled manner was performed by him and two students in 1932.
The atomic theory of John Dalton is from 1801-1802.
Jinnah's 14 points were presented in 1929
Jinnah's 14 points were presented in 1929
Aristotle did not discover the atom. The concept of the atom was first proposed by the ancient Greek philosopher Leucippus and his student Democritus around the 5th century BCE. Aristotle, who came after them, did not accept the idea of atoms and instead favored a different view of matter.
1886
1961
what is the model year