Science Chapter 19
Terms
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- Chemical formula <1>
- tells what element a compound contains and the exact number of atoms of each element in a unit of that compound
- Chemically Stable <1>
- when the atom's outer level is complete
- Chemical bond <1>
- the force that holds atoms together in a compound
- Ion <2>
- a charged particle because it now has either more or fewer electrons than protons
- Ionic bond <2>
- the force of attraction between the opposite charges of the ions in an ionic compound
- Covalent bond <2>
- The attraction that forms between atoms when they share electrons
- Molecule <2>
- a nuetral particle that forms as a result of electron sharing
- Nonpolar Molecule <2>
- a molecule in which electrons are shared equally in bonds
- Polar Molecule <2>
- a molecule that has a slightly positive end and a slightly negative end although the overall molecule is neutral
- Binary Compound <3>
- a compound that is composed of two elements
- Oxidation Number <3>
- tells you how many electrons an atom has gained, lost, or shared to become stable
- Polyatomic Ions <3>
- a positively or negatively charged, covalently bonded group of atoms
- Hydrate <3>
- a compound that has water chemically attached to its ions