Lewis Structures - General Chemistry - Assignment, Exercises of Chemistry

Download Lewis Structures - General Chemistry - Assignment and more Exercises Chemistry in PDF only on Docsity! 5.3 – Lewis Structures Octet Rule – chemical compounds tend to form so that each atom, by gaining, losing, or sharing electrons, has an octet (8) of electrons in its highest occupied energy level. *exceptions: Hydrogen (2), Boron (6) Electron Dot Notation – an electron configuration in which only the valence electrons of an atom are shown (these are indicated by dots placed around the element’s symbol). *Draw the dot notation for the following: 1. Na 2. Mg 3. B 4. C 5. N 6. O 7. F Lewis Structures – formulas in which atomic symbols represent nuclei, dot pairs or dashes represent covalent bonds, and dots adjacent to one atomic symbol represent unshared electrons. *example: Multiple Covalent Bonds – atoms of some elements can often share more than one pair of electrons. Multiple bonds have greater bond energies and are shorter than single bonds. *example of a double bond *example of a triple bond Docsity.com