What is a polyatomic ion? Draw the correct formula for five polyatomic ions with their combining capacities.?
Answer:
The prefix "poly-" implies more than one, and so "polyatomic" is stating that there is more than one atom in the ion.
Basically, a polyatomic ion is a molecule consisting of two covalently bonded atoms. What make these "ions" is that, like ions, these small molecules carry a charge and thus can bond just like a single ionic atom (or monoatomic).
five polyatomic ions are:
Acetate......C2H3O2 (1−)
Aluminate.....AlO2 (1−)
Amide.....NH2 (1−)
Ammonium...NH4 (1+)
Azide.......N3 (1−)
Note: The numbers next to the letters are subscripts, and the numbers in parentheses are combining capacities.
To see a better writing of the formulas, use my link.
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