chemical bonds key terms. chemically stable describes an atom that has a full outer energy level....
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Chemically Stable Describes an atom
that has a full outer energy level.
All noble gases have the maximum number of electrons possible in their outer shell making them stable, and this unreactive.
Chemical Formula Shorthand that tells what elements a compound contains and the exact number of atoms of each element in a unit of the compound.
Common Name: Chalk
Chemical Name: Calcium Carbonate
Chemical Formula: CaCO3
Binary Compound
A compound composed of two elements.
Common binary compounds include salt (NaCl), ammonia (NH3), and water (H20).
Salt Crystals
Ion A charged particle that has either more or fewer electrons than protons.
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Ionic Bond The force of attraction between the opposite charges of the ions in an ionic compound – result of loss or gain of electron(s).
Polar Molecule Molecule that has a slightly positive end and a slightly negative end.
Water is a polar molecule with positive charges on one side and negative charges on the other.
Nonpolar Molecule Molecule made of two identical atoms that share the electrons equally, or molecules that are symmetric, such as CO2.
The electrical charges in nonpolar Carbon Dioxide are evenly distributed.
Oxidation Number
Number that indicates how many electrons an atom must gain, lose, or share to become stable.
Polyatomic Ion Positively or negatively charged, covalently bonded group of atoms.
Sulfate SO42-
Carbonate CO32-