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Chemical elements
Chemical substances distinguished by atomic number. http://periodic.lanl.gov/
Subtopics:
Astatine (1 items)
Cerium (4 items)
Iron (3 items)
Fluorine (6 items)
Molybdenum (7 items)
Europium (5 items)
Arsenic (14 items)
Antimony (1 items)
Iodine (1 items)
Germanium (1 items)
Lutetium (5 items)
Magnesium (1 items)
Neodymium (5 items)
Chlorine (2 items)
Copper (4 items)
Carbon (7 items)
Boron (7 items)
Bromine (1 items)
Gadolinium (5 items)
Gallium (1 items)
Lead (8 items)
Mercury (8 items)
Cadmium (3 items)
Gold (3 items)
Erbium (5 items)
Chromium (8 items)
Lanthanum (4 items)
Manganese (1 items)
Cobalt (3 items)
Barium (2 items)
Aluminum (3 items)
Beryllium (2 items)
Holmium (5 items)
Dysprosium (5 items)
Nickel (3 items)
Niobium (1 items)
Nitrogen (3 items)
Phosphorus (4 items)
Platinum (1 items)
Potassium (1 items)
Praseodymium (5 items)
Prometium (5 items)
Radium (1 items)
Radon (2 items)
Samarium (5 items)
Scandium (1 items)
Selenium (3 items)
Silver (1 items)
Strontium (6 items)
Sulfur (1 items)
Tantalum (1 items)
Terbium (5 items)
Thulium (5 items)
Tin (2 items)
Titanium (1 items)
Tungsten (2 items)
Uranium (4 items)
Vanadium (7 items)
Ytterbium (5 items)
Yttrium (4 items)
Zinc (6 items)
Results 11 - 20 of 56 listed by similarity [list alphabetically]
PDF Biochar for soil fertility and natural carbon sequestration [More info]
Explains what biochar is and how it is formed, its potential use in both fertilizer and carbon sequestration, and some of the research questions remaining to be addressed before we can utilize it fully in practical ways.
PDF Breccia-pipe uranium mining in northern Arizona; estimate of resources and assessment of historical effects [More info]
Estimates of uranium resources affected by land withdrawal, effects of previous breccia-pipe mining, water-chemistry data for streams and springs, and potential biological pathways of exposure to uranium and associated contaminants.
PDF Carbonatite and alkaline intrusion-related rare earth element deposits--A deposit model [More info]
Describes where and how mineral deposits of this type are found, including chemical and mineralogical characteristics, as well as unsolved scientific questions surrounding their origin.
PDF Characterizing contaminant concentrations with depth by using the USGS well profiler in Oklahoma, 2003-9 [More info]
Use of specialized sampling equipment to study public water supply wells, with examples showing Arsenic in two aquifers.
China's rare-earth industry [More info]
Reviews production, consumption, and reserves and important policies and regulations regarding production and trade of rare earths, including recently announced export quotas.
PDF Chloride control and monitoring program in the Wichita River Basin, Texas, 1996-2009 [More info]
Chloride concentrations in this river have historically been high due to natural saltwater springs and seeps from geologic formations. We monitor the water to help assess the progress of human efforts designed to mitigate this problematic salinity.
PDF Chromium makes stainless steel stainless [More info]
Explains how we use chromium, the types of mineral deposits in which we find it, and the economic factors affecting supply and demand of this commodity.
PDF Cobalt-For strength and color [More info]
Explains how we use cobalt, where it comes from, and whether we have enough available.
PDF Copper - A Metal for the Ages [More info]
Sources, uses, and patterns of consumption of copper worldwide
PDF Corals as climate recorders [More info]
Shows how coral reef specimens are collected, the type of information gained from them, and the methods by which they are measured and studied to understand recent (past few centuries) changes in climate.
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