Answers

2015-11-15T10:15:51+08:00
-Crystalline Structure
-A regular repeating arrangement of ions in the solid.
-Ions are strongly bonded.
-Structure is rigid.

HIGH MELZING POINTS- because of strong forces between ions.
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2015-11-16T21:05:56+08:00
Just combine metal and nonmetal that when their electronegativity is adden its product is above 1.9
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