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Dr. H bonding
Dr. Heiny: (Standard 02) Chemical Bonds
| Question | Answer |
|---|---|
| cations | atoms that have lost electrons and now have a net positive electrical charge |
| anions | atoms that have gains electrons and now have a net negative electrical charge |
| polyatomic ions | groups of two or more atoms bonded together that carry a net positive or negative electrical charge |
| ionic bonds | chemical bonds formed by the attraction between cations and anions |
| metallic bonds | the attraction of metal cations to electrons that surround them in an electron "sea" |
| covalent bonds | a chemical bond formed by the sharing of valence electrons |
| molecule | a group of two of more atoms that are bonded together and are electrically neutral |
| Lewis structure | a model that uses dots or lines to show how electrons are arranged in molecules |
| sigma bond | a covalent bond formed when a single pair of electrons are in bonding orbitals that directly overlap |
| pi bond | a covalent bond formed when parallel orbitals overlap and share electrons |
| molecular formula | a formula that lists the kind and number of each atom in a molecule |
| structural formula | a formula that shows the atoms and bonds for a molecule |
| space-filling model | a model of a molecule that represents atoms as spheres that occupy a certain amount of space. |
| ball-and-stick model | a model of a molecule that represents atoms as balls and bonds are represented as sticks |
| linear | a molecular shape predicted by the valence-shell electron pair repulsion model |
| bent | a molecular shape predicted by the valence shell electron pair repulsion model |
| trigonal planar | a molecular shape predicted by the valence shell electron pair repulsion model |
| tetrahedral | a molecular shape predicted by the valence shell electron pair repulsion model |
| trigonal pyramidal | a molecular shape predicted by the valence shell electron pair repulsion model |
| trigonal bipyramdal | a molecular shape predicted by the valence shell electron pair repulsion model |
| octahedral | a molecular shape predicted by the valence shell electron pair repulsion model |
| polar molecules | molecules that are partially negative on one end and partially positive on another end |
| nonpolar molecules | molecules that have no unbalanced partially negative or partially positive locations |
Created by:
LPH
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