FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Formal Charge on Atom Formula

Fx Copy

LaTeX Copy

The Formal Charge is the charge assigned to an atom in a molecule, assuming that electrons in all chemical bonds are shared equally between atoms, regardless of relative electronegativity. Check FAQs

FC = n vs - (\frac{n bp}{2}) - n nb

FC - Formal Charge?n_vs - No. of Valence Shell Electrons?n_bp - No. of Bonding Pair Electrons?n_nb - No. of Non-Bonding Pair Electrons?

Formal Charge on Atom Example

With values

With units

Only example

Here is how the Formal Charge on Atom equation looks like with Values.

Here is how the Formal Charge on Atom equation looks like with Units.

Here is how the Formal Charge on Atom equation looks like.

3 = 7 - (\frac{4}{2}) - 2

3 = 7 - (\frac{4}{2}) - 2

3 = 7 - (\frac{4}{2}) - 2

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Chemistry » Category

Chemical Bonding » Category

Covalent Bonding » fx Formal Charge on Atom

Formal Charge on Atom Solution

Follow our step by step solution on how to calculate Formal Charge on Atom?

FIRST Step Consider the formula

FC = n vs - (\frac{n bp}{2}) - n nb

Next Step Substitute values of Variables

∴

FC = 7 - (\frac{4}{2}) - 2

Next Step Prepare to Evaluate

∴

FC = 7 - (\frac{4}{2}) - 2

LAST Step Evaluate

∴

FC = 3

Formal Charge on Atom Formula Elements

Variables

Formal Charge

The Formal Charge is the charge assigned to an atom in a molecule, assuming that electrons in all chemical bonds are shared equally between atoms, regardless of relative electronegativity.

Symbol: FC

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Formal Charge

No. of Valence Shell Electrons

The No. of Valence Shell Electrons of an atom are outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond.

Symbol: n_vs

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find No. of Valence Shell Electrons

No. of Bonding Pair Electrons

The No. of Bonding Pair Electrons is the number of electrons shared in a bond.

Symbol: n_bp

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find No. of Bonding Pair Electrons

No. of Non-Bonding Pair Electrons

The No. of Non-Bonding Pair Electrons in the valence shell are the ones not taking part in the bond formation.

Symbol: n_nb

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find No. of Non-Bonding Pair Electrons

Other formulas in Covalent Bonding category

Go Bond Angle between Bond Pair and Lone Pair of Electrons given S Character

θ = a \cos (\frac{s}{s - 1})

Go Fraction of S Character given Bond Angle

s = \frac{\cos (θ)}{\cos (θ) - 1}

Go Bond Angle between Bond Pair and Lone Pair of Electrons given P Character

θ = a \cos (\frac{p - 1}{p})

Go Percentage of S Character given Bond Angle

% s = (\frac{\cos (θ)}{\cos (θ) - 1}) \cdot 100

How to Evaluate Formal Charge on Atom?

Formal Charge on Atom evaluator uses Formal Charge = No. of Valence Shell Electrons-(No. of Bonding Pair Electrons/2)-No. of Non-Bonding Pair Electrons to evaluate the Formal Charge, The Formal Charge on atom is the charge assigned to an atom in a molecule, assuming that electrons in all chemical bonds are shared equally between atoms, regardless of relative electronegativity. Formal Charge is denoted by FC symbol.

How to evaluate Formal Charge on Atom using this online evaluator? To use this online evaluator for Formal Charge on Atom, enter No. of Valence Shell Electrons (n_vs), No. of Bonding Pair Electrons (n_bp) & No. of Non-Bonding Pair Electrons (n_nb) and hit the calculate button.

FAQs on Formal Charge on Atom

What is the formula to find Formal Charge on Atom?

The formula of Formal Charge on Atom is expressed as Formal Charge = No. of Valence Shell Electrons-(No. of Bonding Pair Electrons/2)-No. of Non-Bonding Pair Electrons. Here is an example- 3 = 7-(4/2)-2.

How to calculate Formal Charge on Atom?

With No. of Valence Shell Electrons (n_vs), No. of Bonding Pair Electrons (n_bp) & No. of Non-Bonding Pair Electrons (n_nb) we can find Formal Charge on Atom using the formula - Formal Charge = No. of Valence Shell Electrons-(No. of Bonding Pair Electrons/2)-No. of Non-Bonding Pair Electrons.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Formal Charge on Atom Formula

Formal Charge on Atom Example

Formal Charge on Atom Solution

Formal Charge on Atom Formula Elements

Other formulas in Covalent Bonding category

How to Evaluate Formal Charge on Atom?

FAQs on Formal Charge on Atom

Variable Name