Question

In the following species formal charge on central nitrogen atom is
:00
10:
+1
-1
+2
-2​

Answer 1

Answer:

Answer. N atom has 5 valence electrons and in NO2 it has 8 bonding electrons and no valence electrons. Hence the formal charge on central atom is +1.

Answer 2

Answer:

Formal charge on central nitrogen atom in $NO3^{-}$ molecule is +1.

Concept:

• Valence electrons : The electrons present in a outermost orbital are called valence electrons.
• Non-bonding electrons: An electron in an atom which does not participate in bonding with any other atoms. This term is refer to a lone pair in which the electron is localized and associated with an atom.
• Bonding electrons: Electrons that forms bond and takes place in a chemical reaction called bonding electrons.
• Charge: No. of cations or anions present is termed as charge of an atom.

Explanation:

• $NO3^{-}$ is a covalent coordinate compound.
• 3 oxygen atoms are attached to a central nitrogen atom.
• The overall charge is -1 .

Formula:

Formal charge = Valence electron - Non bonding electrons -1/2 ( bonding electrons)

• Nitrogen atom is having 5 valence electrons and no loan pair of electrons, so , non bonding electrons are absent.
• it is having 8 electrons in covalent coordination bond termed as bonding electrons.

∴Formal charge = 5 - 0 - 1/2(8)

∴Formal charge = +1

#SPJ3