Concept explainers
Interpretation:
The oxidation numbers needs to be used to indicate that NaF2 is incorrect.
Concept introduction:
Oxidation numbers indicates the number of electrons an atom can lose or gain during the process of
Answer to Problem 79A
NaF2 cannot be formed as the total sum of oxidation state of all atoms will not be equal to the net charge
Explanation of Solution
In a chemical combination, elements have numbers assigned which is said to be oxidation state. It indirectly indicates how many electrons can the atom gain or lose or even share with the other element. Hence, we can say that oxidation number indicates the number of electrons that can be transferred.
Considering compound NaF2, it is noted that Na belongs to group 1 and has one valence electron that it can lose. F belongs to group 17 and has 7 electrons in outermost shell and can accept one electron to fill octet.
As Na can donate one electron and become a positive ion, its oxidation number is +1 while F can accept one electron and become negative ion, its oxidation number is -1. Hence, the compound Sodium Fluoride has formula as NaF. Here, oxidation number of Na is +1 and that of F is -1. The total sum of the oxidation state of all atoms is equal to the net charge.
Therefore, NaF2 cannot be formed as the total sum of oxidation state of all atoms will not be equal to the net charge.
NaF2 cannot be formed as the total sum of oxidation state of all atoms will not be equal to the net charge
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