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In the Lewis dot structure for SiO2, how many total valence electrons are there in the entire molecule, including the ones used to form bonds?

Respuesta :

Explanation:

The total valence electrons present in [tex]SiO_{2}[/tex] molecule are as follows.

         Valency of Si + (Valency of oxygen × number of oxygen atoms)

          = 4 + (6 × 2)

          = 4 + 12

          = 16

Therefore, there are total 16 valence electrons in [tex]SiO_{2}[/tex] molecule including the ones used to form bonds.


       

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Answer:

16 valence electrons

Explanation:

Valence electron is the number of electrons that lies in the outermost orbit of an atom. Si lies in group 4 of the periodic table and O lies in group 6 of the periodic table.  

In SiO₂ there is one atom of Si and two atoms of O. The valence electron in Si is 4 and the valence electron in O is also 6. The total number of valence electron is  

4 + (6 x 2) = 16

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