-
300
Aristotle
Provided method of gathering scientific facts. -
400
Democritus
postulated that light was made up of different particles that, in addition to wavelike behavior, demonstrate certain porperites unique to particles. He also brought forth the theory of relativity -
500
Alchemists
Searched for the Philosopher's stoe,which could transform base materials like copper orlead in gold and for the Elix of life which would grant immortality. -
Robert Boyle
he discovered the Boyle's Law V=CblPa -
Lavoisier
provided the formula for conservation of matter in chemical reactions and element and a compound. -
John Dalton
Stated that all matter is made up of atoms, Atoms are eternal and invisible and they can't be divided. -
Averdeo Avogadro
formulated the atomic theory, that all matter is composed of tiny, indestructible particles called atoms that are alike and have the same atom weight. -
Joseph Proust
publish his law of definite proportations stating that when a compound are analysed into their constituent parts they are always contain the same proportations of their element by weight -
Couloumb
Formulated the law that the force betwen two electrical charges is proportional to the product of the charges and inversely proprtional to square of distance between them, one of the forces involved in atomic reactin -
Michael Faraday
Formulated the second law of electrolysisi the amounts of bodies which are equivalent to each other in etc -
Jons Berealious
he worked out the morden techinque of chemical formula notation. -
JJ Thompson
Discovered the electron and developed the plum-pudding model of the atom -
Marie Curie
Discovered radium and polonium when they stared to investigate radioactive substance. -
Max Planck
Branch of Physics bealing with physical phenomena at microscoscopic scales -
Becqueral
It is now known that Becquerel discovered one type of radioactivity – beta particles (beta-ray activity), which is due to high-speed electrons leaving the nucleus of the atom – in this case, the uranium atom. -
Albert Einstein
Originated the Quantum theory -
Geiger
introduced the first detector of alpha particles and other radiations. -
Roberto Milliken
found out the electric charge of the electron -
Ernest Rutherford
Used the results of his gold-foil experiment to state that all the mass of an atom were in a small positively-charged ball at the center of the atom. -
Nelis Bohr
Stated that the electrons moved around the nucleis in successively large orbits. He also presented the Bohr atomic model which stated that atoms absorb or emit readition only when the electrons abruptly jump between allowed, or stationary,states. -
Werner Hiesenberg
The development of the matrix mechsnics for mulation of quantum mechanics -
Erwin Schroedinger
Introduction the shroedinger Equation, a wave equaion that describes the form of the probability waves that govern the motion of small particles and how these waves are altered by external influences. -
Otto Hahn & Lise Meitner
Discovered nuclear fission,in which the nucleus of an atom breaks up ito two separate nuclei,while experimenting with uranium -
Murray Gell-Mann and Geoge Zweig
Brought forth the idea of "quarks", little bits of matter which when used kind of like buliding blocks,serve to explain some complex chemical substances. -
Gienn T. Geoborg
Isolated and Identified elements heavier than uranium, and in the process, added elements number 94-102, and 106