Respuesta :
There is total a 26 number of valence electrons in a sulfite ion. Thus, option A is the correct answer.
There are total of 26 electrons in the Lewis dot structure of the sulfite ion. the compositions of this number are, there are 6 valence electrons of sulfur.
18 number of valence electrons due to the presence of oxygen, there three atoms each of which six electrons are present. Now, because the sulfite ion is negatively charged, the two electrons presence also counts.
The total number of electrons are two, when we sum up these values we get 26 as it's valence number. While, creating the Lewis dot structure, a double bond is supposed to form between one of the oxygen and sulfur atoms.
There are two single bonds which also gets formed, resulting trigonal planar. In the structure, it is observed that it is arranged in such a way that all the atoms have an octet of valence electrons around them.
to know more about valence electrons,
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