History of Chemistry Gases 50 100 150 200 250 99197144 inventor of barometer P1 V1 = P2 V2 (VT)n,p Law of Combining Volumes v1 = FW 2 v2 FW 1 1 7/17/16 History of Chemistry Radiation c 50 100 discrete bundle of energy 150 E m between and UV 200 250 between UV and IR Atomic Theory 50 combine in whole # ratios 100 postulated atomic theory in 1800's 150 discovered charge to mass ratio of electron 200 Oil drop experiment 250 Two corollaries of the Theory Quantum theory 50 proposed quantized energy 100 Pauli const 150 E = 200 250 n2 generates 3 of the quantum numbers 0, 1, 2 if n=3 Radioactivity 50 100 150 200 Bequerel most penetrating type negatively charged will not deflect in magnetic fields 250 4 atomic mass units Potpouri 50 100 150 200 250 E = mc2 radium and Nobel Prize x-ray of spouse's hand h = mv 1999 chemistry Nobel Laureate 99197144 2 7/17/16