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Unit 5 Vocab
| Question | Answer |
|---|---|
| electronegativity | a measure of the attraction of an atom for electrons |
| ionic bond | often form when metals bond with nonmetals and there is a great difference in electronegativities |
| non-polar covalent bond | bonds that form when the difference in electronegativity between bonding atoms is low - The electrons are shared equally between the atoms. |
| polar covalent bond | An unequal sharing of electrons. One atom with a higher electronegativity draws the bonding electrons toward itself, pulling those electrons away from the atom with the lower electronegativity value. |
| non reactive non metals | Noble gasses |
| valence electrons | the electrons in the outermost energy level of an atom |
| covalent bond | form between two nonmetal atoms because the atoms have similar electronegativities |
| single covalent bond | A bond that is composed of two shared electrons |
| double covalent bond | A bond that is composed of four shared electrons |
| triple covalent bond | A bond that is composed of six shared electrons |
| Lewis structure | a representation of an atom's valence electrons using dots and the element symbol |
| octet rule | refers to the tendency of atoms to prefer to have eight electrons in the valence shell. |
| coordinate covalent bond | A covalent bond in which both electrons come from one atom. |
| resonance structure | represent all of the possible positions of electrons in a molecule’s chemical bonds. |
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