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Debora [2.8K]
3 years ago
6

Magnesium oxide is a binary ionic compound. From the formula MgO, how do you know that Mg is the metal?

Chemistry
1 answer:
hammer [34]3 years ago
8 0

Answer:

See below.  

Step-by-step explanation:

<em>Method 1: </em>

You know that oxygen is a <em>non-metal. </em>

If the compound is ionic, the oxygen must be combined with a <em>metal</em>.

The Mg must be a metal.

<em>Method 2:</em>

In the formulas of ionic compounds, the positive ion (usually a metal) is written first.

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