How To Clean-up An Oil Spill You will be using a small container, water, and vegetable oil. The water represents an ocean (orbay, sound, even a lake) and the vegetable oil is the oil that is spilled into the water.ow To Clean-up An Oil Spill method is that dispersants often harm marine life and the dispersed oil remains in the body ofwater where it is toxic to marine life.Physical7.
Chromium is a chemical element with symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point.aturally occurring chromium is composed of three stable isotopes; 52 Cr, 53 Cr and 54 Cr with 52 Cr being the most abundant (83.789% natural abundance). 19 radioisotopes have been characterized with the most stable being 50 Cr with a half-life of (more than) 1.8 Ã 10 years, and 51 Cr with a half-life of 27.7 days.
Klaproth confirmed Mueller'mÃ¼ller s. Discovery he suggested the name, tellurium from The latin word, tellus Meaning.. Earth tellurium is often found with another, element. Selenium that element was discovered 30 years later and named in honor of The. moonhe elements that make up Group 16 (VIA) of the periodic table are sometimes called the chalcogens. This name comes from the Greek word for bronze ore, chalkos. The first two elements in the family, oxygen and sulfur, are often found in such ores. Tellurium is the next to last member of that family.