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something that stands for or represents something else
a combination of chemical symbols and numbers to represent a substance
(physics and chemistry) the simplest structural unit of an element or compound
having one atom in the molecule
of or relating to a molecule made up of two atoms
the act of decomposing a substance into its constituent elements
chemical analysis to determine the amounts of each element in the substance
simple whole number ratios of elements in a compound
a chemical formula of a molecular compound that shows the kinds and numbers of atoms present in a molecule of a compound
an expanded molecular formula showing the arrangement of atoms within the molecule
located to the left of the zig-zag line and are malleable, good conductors, ductile, shiny, mostly solids.
right of the zigzag line, not malleable/ductile, not shiny, poor conductors.
elements on the periodic table that have properties of both metals and nonmetals
elements that touch the zigzag line except Aluminum - share properties of metals and nonmetals
a tabular arrangement of the chemical elements according to atomic number as based on the periodic law
electrically charged atoms that have gained or lost electrons.
compounds composed of cations and anions
lowest neutral whole number ration of ions from an ionic compound
positively charged ions
negatively charged ions
chemical compound composed of only two elements
tightly bound groups of atoms that behave as a unit and carry a charge
the roman numerals in parenthesis to indicate the charge of an atom
Compound that contains atoms of three or more different elements
compounds composed of molecules.
the degree of oxidation of an atom or ion or molecule. for simple atoms or ions the oxidation number is equal to the ionic charge; "the oxidation number of hydrogen is +1 and of oxygen is -2"
acids that consist of two elements, usually hydrogen and a halogen
Oxides containing hydrogen, oxygen, and one other element
below, under, deficient