Respuesta :
There are 26 needed electrons are in the chlorate ion ClO₃⁻.
The chlorate ion contains one chlorine atom along with three oxygen atoms. In addition, the ClO₃⁻ ion has a -1 charge.
The periodic table has groups for oxygen and chlorine at positions 7 and 6, respectively. The valence shell of chlorine has seven electrons. Six electrons contain the valence shell of the oxygen atom.
With a charge of -1, the chlorate ion contains one extra electron than a neutral ClO₃ molecule. A total of 26 valence electrons make up the ClO₃⁻ ion.
The ability of having greater valance is important. Chlorine can show valence 7. But, oxygen's maximum valence is 2. Therefore chlorine has more chance to be the center atom
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