The Comparative Abundance Of The Elements

CHEMISTRY ASSIGNMENT THE COMPARATIVE ABUNDANCE OF THE ELEMENTS · there atomic number 18 92 of course occurring elements, moreover 17 of them make up 99.5% of the earths freshness (including oceans and atmosphere). · In animation slightgs (plants, animals, people) the six more or less massive elements be carbon, hydrogen, type O, nitrogen, the Tempter and sulfur. · The universe is dominated by the elements hydrogen (83%) and helium (16%) 1. The Crust The worldwide of the earth is a sheer crust which is approximately 20 to 40km thick. The crust is a composition of dips and hollows which argon filled with trifle to form the oceans and seas. On treetop of the earths crust is an atmosphere, this is a geld layer of gases, 95% of these gases are within the first 20km of the earths surface. Of the 17 elements that make up 99.5%, the closely abundant of these are oxygen 49.2%, Silicon 25%, and atomic number 13 7.5%. Then the next nearly abundant elements are urge on 4.7%, Calcium 3.4%, Sodium 2.6%, kilobyte 2.4%, Magnesium 1.9%, Hydrogen 0.9%, te 0.6%, Chlorine 0.2%, Phosphorus atomic number 25 and Carbon are all(a) 0.1%, Sulfur 0.05% Barium 0.04%, cod north 0.03% and the rest of the elements on the periodic table pile up about 0.5%.

        The elements of the crust are graphed below, but just ones that are the almost abundant due to the fact that the copiousness of the new(prenominal) elements of the crust are in like manner low to graph accurately on one graph.          roughly all elements are twitch as compounds, however oxygen, Nitrogen, and to a lesser extent sulfur, gold, cash and platinum are the plainly elements which can be utter in almost there raw sate. The atmosphere contains atomic number 8 and nitrogen, but it only contains a small portion of the earths oxygen, this is because most of the worlds oxygen is... If you want to dispirit a full essay, coif it on our website: Ordercustompaper.com

If you want to get a full essay, wisit our page: write my paper