Question

*In PO₄³⁻ ion the formal charge on the oxygen atom of P-O bond is:* 1️⃣ +1 2️⃣ -1 3️⃣ -0.75 4️⃣ +0.75​

Answer 1

Answer:

1️⃣ +1 2️⃣ -1 3️⃣ -0.75 4️⃣ +0.75

Answer 2

Answer:

The formal charge in $PO_{4} ^{3-}$ at oxygen atoms is 1,1, 0.75, 0.75.

Explanation:

The formal charge also known as a fake charge.

In $PO_{4} ^{3-}$ there is resonance in reality with all oxygen atoms.

Formal charge  in the covalent bonding, is the charge on an atom in a molecule or a compound, the assumption is that electrons in all chemical bonds are shared equally between atoms, not depending on the relative electronegativity.

The formal charge (F) on an atom is given by.

F = V - L - $\frac{B}{2}$.

V is the number of valence electrons of an atom in isolation (in ground state).

L is the number of non-bonding electrons on an atom in the molecule.

B is the number of covalent bonds shared by an atom.

Looking at the structure of  $PO_{4} ^{3-}$ we have the formal charge on oxygen as 1,1, 0.75,0.75 we balance the positive charge on phosphorus.

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21 MAY 2022