A binary ionic compound is composed of ions of two different elements - one of which is a metal, and the other a nonmetal. For example, sodium iodide, NaI, is composed of sodium ions, Na+ (elemental...
1. You must memorize the charges of an element 2. You must memorize the atomic mass and atomic no.3. Be patient4. you must have a pad paper and fold it to lengthwise5. practice the use of octet...