Chapter 7 . Ionic and Metallic Bonding. Ionic and Metallic Bonding. Ionic Bond: bond between 2 oppositely charged ions Cation (+) & Anion (-) Metal & Nonmetal Metal & Polyatomic ion Properties of Ionic Bonds:
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Ionic and Metallic Bonding
Cation (+) & Anion (-)
Metal & Nonmetal
Metal & Polyatomic ion
1. Na + ionization energy Na+ + 1e-(endothermic)
Net result is Exothermic
Strong IONIC BOND holding the + and -
Regular repeating pattern (lattice)
Crystal Arrangement: __________________________
Glue between the ions in an ionic compound is ___________________________
Valence electrons: ____________________________
Coordination Number: ___________________________
Shape of the crystal depends on ___________________
NaCl is ________________________________
An electrostatic attraction between the + and – ions
e- involved in bonding (highest occupied shell)
# of + charged ions surrounding - ions
size and arrangement of ions
cubic and its coordination # is 6
lowest whole # ratio of ions OR atoms
formulas may be ________________
ratio of atoms in a molecule of a
compound. How it actually exists.
Forces between 2 adjacent water
Forces make water
ICE: Molecular Compound:
Contains TWO forces.
Melting Point is comparatively low
compared to salt because breaking weaker intermolecular bond between 2 different water mc’s, not strong covalent bond between 0-H that makes water.
No Distinct Units
Strong covalent bonds WITHIN water molecules. (Holds H & O atoms together) MAKES WATER MC.
Weak bonds BETWEEN different water molecules. The slightly – oxygen end of one water mc is attracted to the slightly + end of a nearby water mc.
+ and Empirical Formula, Molecular Formula or Both
+Metallic Bonds and Metallic Properties
closely packed CATIONS
compact and orderly patterns.
2 or more elements.
copper & zinc.
iron and carbon