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Atomic History Research Project
Transcript of Atomic History Research Project
1.)The atoms of a given element are different then those
from any other given element, particularly in atomic mass.
2.)All atoms of a given element are identical.
3.)Atoms of one element can be combined with atoms of another
element to form chemical compounds.
4.)Atoms can not be created, divided into smaller particles
5.)Elements are made up of tiny particles called atoms.
Dalton's law was discovered by measuring the pressure of gases, it states that the total pressure exerted by a gaseous mixture is equal to the sum of the partial pressures of each individual component in a gas mixture. Or in other words, the mass of a mixture of gasses is equal to the sum of its parts. The Father of Modern Atomic Theory By Matthew Thomas, James Yoon, Brea Patterson, and Will Klingner The Life Of John Dalton Were his beliefs accepted by society? Dalton's evidence was insufficient, atoms had been theorized since aristotle. The scientists wanted hard evidence which Dalton couldn't provide. (took 75 more years for atomic theory to be takes seriously) Dalton's Law Born September 6, 1766
Died July 27, 1844 at the age of 77
His country of origin was Cumberland, England
His sequence of professions started off with running a Quaker school and progressed onto tutoring advanced maths and sciences. Later on he was employed as a secretary at the Manchester Literary and Philosophical Society and finally, a little while after, moved onto studying Atomic Theory. Dalton also discovered that "if two elements have more than one combination, then weight amounts of one of them belonging to unchanging amount of the second one are staying in relations of small integers." This means that gasses combine in consistant ratios and produse substances in more ratios. This is the basic principle of Stoiciometry. From these two realizations, he theorized that gasses formed predictable ratios of pressure and allways retained the same mass through chemical reactions due to the mass of the atoms. From this he created five laws foming Dalton's Atiomic Model. Dalton discovered that if two elements have more than one combination, then weight amounts of one of them belonging to unchanging amount of the second one are staying in relations of small integers. It took two major discoveries for Dalton to find this wonderous Law... In the end, John Dalton was not recognized for his hard work until a while after he died. However, without his discoveries, the world would not know nearly as much as it does now on Atomic Theory. THE END