How are chlorides made?

1 Answer

By chlorides, I assume you mean -chloride ionic compounds.

Explanation:

#Cl^-# is an anion, where it gains one electron from any source.

Image Source: http://gardenandplate.com/images/molecules//chlorideion.jpg

This gained electron (highlighted in red) can come from any electron-donating ion.
Let's take the most common chloride salt formed, #NaCl# (sodium chloride).
Sodium as an atom has one electron in its outermost 2s1 sub-orbital, hence the #Na^+# ion easily donates its single valence electron to the #Cl^-# ion, allowing both to gain a stable noble gas electronic configuration.