CHEM 1A03 Lecture Notes - Lecture 3: Arsenic Poisoning, Mercury Poisoning, Threshold Energy

• School: McMaster University
• Department: Chemistry
• Course: CHEM 1A03
• Professor: David Brock

Document Summary

Chemistry 1a03 - lecture 3 - atomic structure + theory: heavy metal poisoning, lead poisoning in water, mercury poisoning from sh, arsenic poisoning from pesticides. > arsenic in small dosage, but there are different forms that won"t cause serious effects cadmium rice poisoning > industries (factories) and their emissions. > run off water that leeches into rice. Elements have distinct energy levels, colours occur when emission occurs. > (electrons going back to relaxed state: emission spectra. > there are no in between energy levels since energy is quantized. > in order to be excited, electron must pass threshold energy. Would the energy be different in the following process (ionization process: different because they have different number of protons. > if ionization occurs, the energy level (n) would be n= in nity: how to calculate change in energy (pg 317) Luminol to yellow-green glow indicates presence of blood.