Search results
Results From The WOW.Com Content Network
[citation needed] Over geological time scales, very few metals can resist natural weathering processes like oxidation, so mainly the less reactive metals such as gold and platinum are found as native metals. The others usually occur as isolated pockets where a natural chemical process reduces a common compound or ore of the metal, leaving the ...
01.A Metals and intermetallic alloys 01.AA Copper-cupalite family: 05 native copper, 05 lead, 05 native gold, 05 native silver, 05 nickel, 05 aluminium; 10a auricupride, 10b tetra-auricupride; 15 novodneprite, 15 khatyrkite, 15 anyuiite; 20 cupalite, 25 hunchunite
Metals in their native state are those found in nature as free elements (chemically uncombined). They are usually attached to or mixed with varying amounts of undesired material , and require only physical separation to produce usable metal. Most metallic ores in the Earth's crust require chemical processing to produce metal.
This page lists metals, with subdivisions for alloys and specialised subsets of metal and metal-based compounds. Subcategories This category has the following 20 subcategories, out of 20 total.
This list of chemical elements named after places includes elements named both directly and indirectly for places. 41 of the 118 chemical elements have names associated with, or specifically named for, places around the world or among astronomical objects.
These heavy metals were found around the country in local honey in the first large biomonitoring study of honey in the U.S. File image: Honey bees crawling on the outside of the hive.
This is a list of named alloys grouped alphabetically by the metal with the highest percentage. Within these headings, the alloys are also grouped alphabetically. Within these headings, the alloys are also grouped alphabetically.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!