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.
Origin of name: from the Greek word  neon  meaning  new . Neon was discovered by Sir William Ramsay and Morris Travers in 1898 very shortly after their discovery of the element krypton. Both elements were discovered through work on liquid air.A little later they discovered xenon using similar methods.eon is a very inert element. Neon forms an unstable hydrate. In a vacuum discharge tube, neon glows reddish orange. Of all the rare gases, the discharge of neon is the most intense at ordinary voltages and currents. It is present in the atmosphere as 1 part in 65000.