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GOOD THINGS ALWAYS<br />
COME IN THREE’S<br />
Since good things always do come in three’s, we have another rule<br />
to add to naming <strong>Binary</strong> Ionic <strong>Compounds</strong>:<br />
You must add the correct subscript to its proper element.<br />
All elements come with different charges, so in order to clarify<br />
what element’s charge you are using, you add a subscript.<br />
In other words, you add the roman numeral (of what charge it is)<br />
in parentheses after your element.<br />
For Example: Copper Oxide<br />
By looking at this name you don’t know whether the copper<br />
charge is 2+ or 1+., So by adding a subscript to the name:<br />
Copper (II) Oxide, you can conclude that Copper’s Charge is 2+
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