Answer : The correct option is, The positive ion
Explanation :
The rules for naming the ionic compounds is given as :
- The positive ion (cation) is written first.
- The negative ion (anion) is written next.
- The suffix is added at the end of the negative ion (anion). The suffix used is '-ide'.
As per question, the first word in the name of a binary ionic compound represent the positive ion and then the negative ion.
For example : NaCl is the binary ionic compound that composed of two different elements which are Na and Cl. The name of this compound is, Sodium chloride.
Hence, the correct option is, The positive ion