Based on the naming rules for ions, which of the following is a negatively charged ion (not a polyatomic ion)?
1) chlorate
2) chloride
3) chlorite
4) chlorine
The negatively charged ion among the options provided is chloride (option 2).
To determine which of the given options is a negatively charged ion, let's review the naming rules for ions.
In general, negatively charged ions are formed by gaining one or more electrons. When naming negative monatomic ions, the suffix "-ide" is added to the root name of the element.
Now, let's analyze the options:
1) Chlorate: This is a polyatomic ion and not a negatively charged monatomic ion.
2) Chloride: This is the correct answer. The root name is "chlor-" and the suffix "-ide" is added to form the negatively charged ion "chloride."
3) Chlorite: This is a polyatomic ion and not a negatively charged monatomic ion.
4) Chlorine: This is the name of the element itself and not a negatively charged ion.
Therefore, the correct option is 2) chloride, which is a negatively charged ion.