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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. |