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Chemistry Vocab

Chapter 12

TermDefinition
Chemical Bonds Force of attraction holding atoms in a molecular or formula unit together
Bond Energy Energy required to separate
Ionic Bond Force of attraction between ions (metals and nonmetals)
Covalent Bond Non-metals share electrons
Non-polar (covalent) electrons are shared equally
Polar Covalent Electrons are unevenly shared
Electronegativity Ability of an atom to attract shared electrons
Dipole Moment The charge of a molecule can be represented by a center of positive and negative charge
Duet Rule Hydrogen Ions only need 2 electrons
Octet Rule most atoms need 8 electrons in their outermost sublevel to be stable
Bent *Molecular shape/structure* 2 single bonds and 2 unshared pairs
Linear *Molecular shape/structure* Either 2 elements combined or 2 double bonds
Trigonal Pyramid *Molecular shape/structure* 3 surrounding atoms and unshared pair on the central atom
Trigonal Planar *Molecular shape/structure* 3 surrounding atoms with no unshared pairs on the central atom
Tetrahedral *Molecular shape/structure* 4 single bonds on central atom
Created by: Rmcguire14