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QUESTION

# What is the ionic formula for sodium chloride?

NaCl

Sodium is an Alkaline Metal in the first column of . This means that Sodium has 1 valence electron it readily gives away in order to seek the stability of the octet. This makes Sodium a Na^(+1) cation.

Chlorine is a Halogen in the 17th column or p^5 group. Chlorine has 7 . It needs one electron to make it stable at 8 electrons in its valence shells. This makes chlorine a Cl^(−1 ) anion.

Ionic bonds form when the charges between the metal cation and non-metal anion are equal and opposite. This means that one Cl^(−1) anion will balance with one Na^(+2) cation.

This makes the formula for calcium chloride, NaCl.