CHEM 111A Chapter Notes - Chapter 9: Bond Length, Formal Charge, Lattice Energy
4 May 2017
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Ionic bond metals have low ionization energy and therefore their electrons can be easily removed, forming cations. Nonmetals have high electron affinities, meaning they can easily gain electrons and form anions: when cations and anions come together they lower the overall potential energy (coulomb"s law) Ionization: (1: covalent bond shared electrons interact with the nuclei of both bonding atoms, lowering their potential energy (2) In the case of helium or hydrogen, a duet (2 ve) is most stable circles) (3) Ionic bonding: practice: k and cl (4, na and s (5, mg and n (6) Ionization must occur for this to happen; therefore ionization energies and equations must be used. Cao and sro > kbr and kcl (charge magnitudes) Kbr and kcl atomic radii: cl < br, so kbr < kcl. Cao and sro atomic radii: ca < sr, so sro < cao.
