CHEM 101 Chapter Notes - Chapter 8: Electron Affinity, Ionic Compound, Ionic Bonding
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=(cid:1863)+ (cid:1856) it increases with the charge on the ions (more important) and decreases with increasing size of ions (because they are farther apart) =(cid:1870) the larger the dipole moment, the more polar the bond: bond length increases as en difference decreases. 8. 5 drawing lewis structures: sum the valence electrons from all atoms, taking into account overall charge, write the symbols for the atoms, show which atoms are attached to which, and connect them with a single bond. The central atom is the least electronegative (not hydrogen): complete the octets around all the atoms bonded to the central atom. Formal charge and alternative lewis structures formal charge: charge the atom would have if each bonding electron pair in the molecule were shared equally between its two atoms (cid:1858)(cid:1867)(cid:1870)(cid:1865)(cid:1853)(cid:1864) (cid:1855) (cid:1853)(cid:1870)(cid:1859)(cid:1857)=(cid:1874)(cid:1853)(cid:1864)(cid:1857)(cid:1866)(cid:1855)(cid:1857) (cid:1857)(cid:1864)(cid:1857)(cid:1855)(cid:1872)(cid:1870)(cid:1867)(cid:1866)(cid:1871) (cid:883)(cid:884)(cid:1854)(cid:1867)(cid:1866)(cid:1856)(cid:1866)(cid:1859) (cid:1857)(cid:1864)(cid:1857)(cid:1855)(cid:1872)(cid:1870)(cid:1867)(cid:1866)(cid:1871) (cid:1866)(cid:1867)(cid:1866)(cid:1854)(cid:1867)(cid:1866)(cid:1856)(cid:1866)(cid:1859) (cid:1857)(cid:1864)(cid:1857)(cid:1855)(cid:1872)(cid:1870)(cid:1867)(cid:1866)(cid:1871: all unshared (nonbonding) electrons are assigned to the atom on which they are found.
