Question

how many lone pairs are there in CO3 2-

Answer 1

Holaa❣️❣️❣️

Total no. of lone pairs in the CO32- ion would be 8.

The reason being that in its structure one 0 atom is attached to C atom with a double bond (so it would have 2 lone pairs) and the other two O atoms will be bonded with a single bond with the C atom (and so 3 lone pairs each)

^_^

Answer 2

Answer: There are $8$ lone pair of electrons in $CO_{3}^{2-}$.

Explanation:

• Carbon  belongs to group $4$ in the periodic table, so there are $4$ valence electrons in carbon and oxygen belongs to group $6$ so its valence shell contains $6$ electrons.

• $CO_{3}^{2-}$ ion contains three oxygen atoms, hence the total number of valence electrons provided by oxygen atoms is $6 *3 = 18$

• The $CO_{3}^{2-}$ion has a $-2$ charge. As a result, two more electrons contribute to the valence electrons.

• Total valence electrons$= 4 + 18 + 2= 24$
• By dividing the total number of valence electrons by two, we can calculate the total number of electron pairs.
• Total pair of electrons for $CO_{3}^{2-}$ is $12$.
• So in Lewis structure of $CO_{3}^{2-}$, there are $8$ lone pairs of electrons are present.

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