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Chemistry development “ Boyle’s law”
Robert Boyle. (1627-1691) Studied the behavior of gases and discovered the inverse relationship between volume and pressure of a gas. He also states that “all realty and change can be described in terms of elementary particles and their motion” and early understanding of atomic theory. -
Gas chemistry development (law of conversation of mass)
Antoine Lavoisier. (1743-1794)Was a French chemist who made important contributions to the science. Lavoisier helped to develop the metric system in order to insure uniform weights and measures. Lavoisier’s insistence on meticulous measurement led to the discover of the law of conservation of mass. -
Chemistry development “Amedeo’s law”
*Amedeo Avogadro. (1776-1856) was an Italian lawyer who began to study science and mathematics in 1800. Expanding on the work of Boyle and Charles, he clarified the difference between atoms and molecules. He went on to state that equal volumes of gas the same temperature and pressure have the same number of molecules. -
Chemistry development “ Berzelius atomic weights”
Jons Jacob Berzelius. (1779-1848) one of the founders of modern chemistry. He is especially noted for his determination of atomic weights, the development of modern chemical symbols, his electrochemical theory, the discovery of isolation of several elements, the development of classical analytical techniques and his investigation of isomerism and catalysis -
Chemistry development “ Dalton’s law”
John Dalton. (1766-1844) and English meteorologist began to speculate on the phenomenon of water vapor. He was aware that water vapor is part of the atmosphere, but experiments showed that water vapor would not form certain other gases. -
Chemistry development “ Mendeleyev’s periodic table”
Dmitri Mendeleev. (1834-1907) was a Russian chemist known for developing the first Periodic table of elements. He listed 63 know elements and their properties on cards. When he arranged the elements in order of increasing atomic mass. He could group elements with similar properties. With a few exceptions, every seventh elements had similar properties. -
Chemistry development “ Bohr model”
Niels Bohr’s. (1885-1962) atomic model solved this problem by using Planck’s information. Photons are emitted from an electrically simulated atom only a certain frequencies. He hypothesized that electrons inhabit distinct energy levels and light is only emitted when an electrically “excited” electron is forced to change energy levels.
