Chapter 12 Test
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Created by:
victoriaparadise on January 10, 2012
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14 terms
Terms | Definitions |
|---|---|
 Ionic bonds | 1) MN 2) Electron transfer 3) Form ions 4) Strong bond 5) Good conductors |
| Covalent bonds | 1) NN 2) Electron sharing 3) Form molecules 4) Weak bond 5) Poor conductors |
| Cations | formed when an atom loses valence electrons to become positively charged |
| Anions | formed when an atom gains electrons and becomes negatively charged |
| Polar Covalent Bond | A bond in which the electrons are not shared equally. |
| Electronegativity | The ability of an atom to attract electrons in a chemical bond. |
| Octet rule | Atoms bond in such a way as to have eight electrons in their valence shell. |
| VSEPR Theory | Used to predict the shapes of molecules. |
| Electron Pair Geometry | Gives the arrangement of bonding and nonbonding pairs around a central atom. |
| Molecular Shape | Gives the arrangement of atoms in a molecule. |
| Core Electrons | Found close to the nucleus. |
| Valence Electrons | Found in the most distant s and p energy subshells. Responsible for holding two or more atoms together in a chemical bond. |
| Bond Energy | The energy required to break a covalent bond. |
| Bond Length | The distance between the two atoms. |
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