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Chemistry Vocab
Chapter 12
Term | Definition |
---|---|
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 |