Ionic and Molecular Compounds Vocabulary

Question	Answer
Alkanes	hydrocarbons containing a single bond between carbon atoms
Anion	negatively charged ion
Bonding pair	a pair of electrons shared between atoms
Cation	a positively charged ion
Chemical Formula	the symbols and subscripts that represent the lower whole # ratio of atom & ions in a compound
Condensed Structural Formula	shows the arrangement of the carbon atoms in a molecule but groups the carbon with its corresponding hydrogen atoms
Covalent Bond	the sharing of valence electrons by atoms
Expanded Structural Formula	shows the arrangement of the atoms by drawing the bonds between carbon atoms or between carbon & hydrogen atoms
hydrocarbons	organic compound consisting of only hydrogen and carbon
Ion	atom/ group of atoms that has an electrical charge due to loss/gain of electrons
Ionic Bonds	The attraction between oppositely charged ions
Ionic Charge	the difference between protons and neutrons located in the upper right corner of the symbol
Ionic Compound	positive/negative ions held together by ionic bonds
IUPAC System	a system for naming organic compounds determined by the International Union of Pure and Applied Chemistry
Lone Pair	electrons that are not shared but complete the octet rule
Molecular Compound	a combination of atoms sharing electrons to complete the octet rule
Molecule	the smallest unit of two or more atoms that are held together by covalent bonds
Octet Rule	Representative elements react with other elements to achieve the noble gas configuration of 8 valence electrons
Organic Compounds	compounds of carbon that have covalent bonds with properties that include low melting/boiling points, insolubility in water, and flammability
Polyatomic Ion	a group of covalently bonded atoms that has an overall electrical charge

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Ionic and Molecular Compounds Vocabulary

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