Question

can anyone get me the formal charges of C and all the O atom in the compound CO32-


pls ans !​

Answer 1

The charge assigned to an atom in a molecule is formal charge.

Formal charge (FC) is given by the formula,

FC=V-N-B/2

Where,

V= Number of valence electrons

N= Number of non bonding electrons

B= Total number of electrons shared in covalent bonds.

The formal charge of N in NO2 - is

FC = 5 - 2 - 6/2

=0

For the LHS oxygen the FC is-

FC = 6 - 6 - 2/2

= -1

For the RHS oxygen the FC is-

FC = 6 - 4 - 4/2

=0

The carbonate ion [CO3 2-] has an overall charge of -2. In the carbonate ion, the carbon atom is bonded with a double bond to an oxygen atom, and with single bonds to two oxygen atoms.

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