پاورپوینت History of the atom

تعداد اسلاید: 96 فرمت فایل : ppt   •Democritus (400 BC) suggested that the material world was made up of tiny, indivisible particles   • atomos, Greek for “uncuttable”   • Aristotle believed that all matter was made up of 4 elements, combined in different proportions   • Fire - Hot   • Earth - Cool, heavy   • Water - Wet   • Air - Light   • The “atomic” view of matter faded for centuries, until early scientists attempted to explain the properties of gases   •The modern atomic thought began with John Dalton (1766-1844)   •Dalton used experimental method to transform Democritus’s idea of atoms into a scientific theory.   •Dalton studied the ratios in which elements combine and the result was Dalton’s atomic theory . قابل استفاده دانشجویان زبان و کسانی که در جست و جوی پاورپوینت به زبان انگلیسی می باشند  ...