After finishing this lecture you will be able to: Define metallic bond Identify elements of periodic table that possess metallic bonds Learn the required conditions for the formation of metallic bond Discuss the factors affecting the strength of metallic bond Explain the formation of metallic bond with the help of examples. Describe the characteristic properties of metallic substances. For PPT Click Here For Downloading Book Click Here
Tag: Chemistry Course
Heavy Metal Pollution: Chromium
After studying this lecture, you will be able to: Know the importance of Cr(III) and which oxidation of Cr between +3 and +6 is more toxic. Discuss the sources of Cr exposure Learn about the entry routes of chromium into the human body Describe most common forms of Cr-compounds and their uses Discuss transport mechanism of Cr from tannery wastes to human body know the symptoms of chromium toxicity and…
Minamata: Causes and Treatment
Introduction The extreme toxicity of Mercury (Hg), those suspected some centuries back, was fully appreciated in the year 1953, when 52% person living in the fishing village along Minamata Bay, Japan, Died of a Mysterious disease. Investigations revealed that the victims had eaten shell-fish contaminated with Hg-containing effluent from a nearby plastic factory operating since 1949. The unit was producing vinyl chloride & acetaldehyde by catalytic conversion of acetylene using…