in my book it states that for any monoatomic ion its oxidationnumber will be its

Question

in my book it states that for any monoatomic ion its oxidationnumber will be its ionic charge. it gave the examples of K+ having an oxidation number of +1saying alkali metals will always have an oxidation number of +1,alkaline will always have +2, etc. this makes sense. i have a problem when they give this chemical eqation (i'mcopying it as is from the book): Mg (s) + 2 HCl (aq)     ------->   MgCl2 (aq) + H2 (g) 0          +1  -1                           +2  -1             0 the oxidation numbers are the numbers given in theequation in the book. my problem is that they state in the equation that Mg has anoxidation number 0. however, it was previously stated in thechapter that any monatomic ion will have the oxidation numberequivalent to the charge of their ion. given this information iwould of assigned Mg an oxidation number of +2. am i misunderstanding the term monoatomic ion? pleasehelp in my book it states that for any monoatomic ion its oxidationnumber will be its ionic charge. it gave the examples of K+ having an oxidation number of +1saying alkali metals will always have an oxidation number of +1,alkaline will always have +2, etc. this makes sense. i have a problem when they give this chemical eqation (i'mcopying it as is from the book): Mg (s) + 2 HCl (aq)     ------->   MgCl2 (aq) + H2 (g) 0          +1  -1                           +2  -1             0 the oxidation numbers are the numbers given in theequation in the book. my problem is that they state in the equation that Mg has anoxidation number 0. however, it was previously stated in thechapter that any monatomic ion will have the oxidation numberequivalent to the charge of their ion. given this information iwould of assigned Mg an oxidation number of +2. am i misunderstanding the term monoatomic ion? pleasehelp

Explanation / Answer

Mg is monoatomic, not monoatomic ion (Oxidationnumber = 0) Mg2+ is monoatomic ion (Oxidation number = +2) Hope this helps!

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.