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Period: to
Modern
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Dalton
He gave an oral presentation titled ‘Experimental Essays’, that dealt with information on his experiments on gasses and the study of the nature and chemical makeup of air in relation to atmospheric pressures. -
Dalton
he came up with the ‘Dalton Law’ also known as Dalton's Law of Partial Pressures’. -
Dalton
He authored an article for the Manchester Literary and Philosophical Society, in which he presented a chart on atomic weights, which was one of the first atomic charts to be created at that time. -
Dalton
He further explained atomic theory and atomic weight in the book titled ‘A New System of Chemical Philosophy’ -
Dalton
He authored an appendix for the book ‘A New System of Chemical Philosophy’. -
JJ Thomson
He became Cavendish Professor of Physics. -
JJ Thomson
Thomson began studying cathode rays, which are glowing beams of light that follow an electrical discharge in a high-vacuum tube. -
JJ Thomson
He began studying atoms with a series of experiments in the Cavendish Laboratory. -
JJ Thomson
He discovered the Electron in the atom. -
Rutherford
Rutherford discovers two types of rays. -
Rutherford
Ernest Rutherford announces that radioactivity is a manifestation of sub-atomic change. -
Niels Bohr
He joined the Copenhagen University, where he initially studied philosophy and mathematics. -
JJ Thomson
Received the Nobel Prize for his discovery of the electron. -
Niels Bohr
He received his Master’s degree in Physics in 1909. -
Rutherford
Ernest Rutherford discovered the nucleus using the gold foil experiment. -
Niels Bohr
Bohr’s model of atomic structure was published which became the basis of the famous quantum theory. -
Niels Bohr
Niels Bohr became a Professor at the University of Copenhagen. -
Rutherford
Ernest Rutherford changed Nitrogen to Oxygen; he split the atoms. -
Rutherford
Ernest Rutherford discovers protons. -
Niels Bohr
He founded the university’s Institute of Theoretical Physics.