Nonmetal - wikipedia, In chemistry, a nonmetal (or non-metal) is a chemical element that mostly lacks metallic attributes. physically, nonmetals tend to be highly volatile (easily. Hydrogen - chemical formula, Hydrogen is a colorless gas that is less dense than air and is highly flammable. the "pop test" is used to identify hydrogen gas in the school laboratory. a test tube. Chemteam: chemical nomenclature, Tutorials and problem sets. tutorials. binary compound (metal/nonmetal) with fixed charge cation given formula, write the name; given name, write the formula.

Polyatomic ions (article) | khan academy, How ionic compounds common polyatomic ions. Printable periodic tables -, Printable periodic tables. , tables acrobat pdf format. view print files, install . The periodic chart table elements | wyzant resources, The periodic chart table elements overview. periodic chart elements arrange elements show large amount information.