A binary compound has two atoms in it eg sodium chloride, NaCl; hydrogen, H2; The symbols of the two atoms are written - the more electronegative element symbol is written second if there is a choice to be made ie metals go first.
The symbols of the two atoms are written - the more electronegative element symbol is written second if there is a choice to be made ie metals go first.
A binary ionic compound is a salt consisting of only two elements in which both elements are ions. The first written is the (mostly metallic) cation followed by the anionic non-metal ion. Its name is...
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