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The Madelung constant is used in determining the electrostatic potential of a single ion in a crystal by approximating the ions by point charges. Check FAQs
M=-U4π[Permitivity-vacuum]r0(1-(1nborn))([Charge-e]2)[Avaga-no]z+z-
M - Madelung Constant?U - Lattice Energy?r0 - Distance of Closest Approach?nborn - Born Exponent?z+ - Charge of Cation?z- - Charge of Anion?[Permitivity-vacuum] - Permittivity of vacuum?[Charge-e] - Charge of electron?[Avaga-no] - Avogadro’s number?π - Archimedes' constant?

Madelung Constant using Born Lande Equation Example

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Here is how the Madelung Constant using Born Lande Equation equation looks like with Values.

Here is how the Madelung Constant using Born Lande Equation equation looks like with Units.

Here is how the Madelung Constant using Born Lande Equation equation looks like.

1.6887Edit=-3500Edit43.14168.9E-1260Edit(1-(10.9926Edit))(1.6E-192)6E+234Edit3Edit
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Madelung Constant using Born Lande Equation Solution

Follow our step by step solution on how to calculate Madelung Constant using Born Lande Equation?

FIRST Step Consider the formula
M=-U4π[Permitivity-vacuum]r0(1-(1nborn))([Charge-e]2)[Avaga-no]z+z-
Next Step Substitute values of Variables
M=-3500J/mol4π[Permitivity-vacuum]60A(1-(10.9926))([Charge-e]2)[Avaga-no]4C3C
Next Step Substitute values of Constants
M=-3500J/mol43.14168.9E-12F/m60A(1-(10.9926))(1.6E-19C2)6E+234C3C
Next Step Convert Units
M=-3500J/mol43.14168.9E-12F/m6E-9m(1-(10.9926))(1.6E-19C2)6E+234C3C
Next Step Prepare to Evaluate
M=-350043.14168.9E-126E-9(1-(10.9926))(1.6E-192)6E+2343
Next Step Evaluate
M=1.68873713008315
LAST Step Rounding Answer
M=1.6887

Madelung Constant using Born Lande Equation Formula Elements

Variables
Constants
Madelung Constant
The Madelung constant is used in determining the electrostatic potential of a single ion in a crystal by approximating the ions by point charges.
Symbol: M
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Lattice Energy
The Lattice Energy of a crystalline solid is a measure of the energy released when ions are combined to make a compound.
Symbol: U
Measurement: Molar EnthalpyUnit: J/mol
Note: Value can be positive or negative.
Distance of Closest Approach
Distance of Closest Approach is the distance to which an alpha particle comes closer to the nucleus.
Symbol: r0
Measurement: LengthUnit: A
Note: Value can be positive or negative.
Born Exponent
The Born Exponent is a number between 5 and 12, determined experimentally by measuring the compressibility of the solid, or derived theoretically.
Symbol: nborn
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Charge of Cation
The Charge of Cation is the positive charge over a cation with fewer electron than the respective atom.
Symbol: z+
Measurement: Electric ChargeUnit: C
Note: Value can be positive or negative.
Charge of Anion
The Charge of Anion is the negative charge over an anion with more electron than the respective atom.
Symbol: z-
Measurement: Electric ChargeUnit: C
Note: Value can be positive or negative.
Permittivity of vacuum
Permittivity of vacuum is a fundamental physical constant that describes the ability of a vacuum to permit the transmission of electric field lines.
Symbol: [Permitivity-vacuum]
Value: 8.85E-12 F/m
Charge of electron
Charge of electron is a fundamental physical constant, representing the electric charge carried by an electron, which is the elementary particle with a negative electric charge.
Symbol: [Charge-e]
Value: 1.60217662E-19 C
Avogadro’s number
Avogadro’s number represents the number of entities (atoms, molecules, ions, etc.) in one mole of a substance.
Symbol: [Avaga-no]
Value: 6.02214076E+23
Archimedes' constant
Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.
Symbol: π
Value: 3.14159265358979323846264338327950288

Other Formulas to find Madelung Constant

​Go Madelung Constant given Repulsive Interaction Constant
M=BM4π[Permitivity-vacuum]nborn(q2)([Charge-e]2)(r0nborn-1)
​Go Madelung Constant using Born-Mayer equation
M=-U4π[Permitivity-vacuum]r0[Avaga-no]z+z-([Charge-e]2)(1-(ρr0))
​Go Madelung Constant using Kapustinskii Approximation
M=0.88Nions
​Go Madelung Constant using Madelung Energy
M=-(EM)4π[Permitivity-vacuum]r0(q2)([Charge-e]2)

Other formulas in Madelung Constant category

​Go Madelung Energy
EM=-M(q2)([Charge-e]2)4π[Permitivity-vacuum]r0
​Go Madelung Energy using Total Energy of Ion
EM=Etot-E
​Go Madelung Energy using Total Energy of Ion given Distance
EM=Etot-(BMr0nborn)

How to Evaluate Madelung Constant using Born Lande Equation?

Madelung Constant using Born Lande Equation evaluator uses Madelung Constant = (-Lattice Energy*4*pi*[Permitivity-vacuum]*Distance of Closest Approach)/((1-(1/Born Exponent))*([Charge-e]^2)*[Avaga-no]*Charge of Cation*Charge of Anion) to evaluate the Madelung Constant, The Madelung constant using Born Lande equation is used in determining the electrostatic potential of a single ion in a crystal by approximating the ions by point charges. Madelung Constant is denoted by M symbol.

How to evaluate Madelung Constant using Born Lande Equation using this online evaluator? To use this online evaluator for Madelung Constant using Born Lande Equation, enter Lattice Energy (U), Distance of Closest Approach (r0), Born Exponent (nborn), Charge of Cation (z+) & Charge of Anion (z-) and hit the calculate button.

FAQs on Madelung Constant using Born Lande Equation

What is the formula to find Madelung Constant using Born Lande Equation?
The formula of Madelung Constant using Born Lande Equation is expressed as Madelung Constant = (-Lattice Energy*4*pi*[Permitivity-vacuum]*Distance of Closest Approach)/((1-(1/Born Exponent))*([Charge-e]^2)*[Avaga-no]*Charge of Cation*Charge of Anion). Here is an example- 1.688737 = (-3500*4*pi*[Permitivity-vacuum]*6E-09)/((1-(1/0.9926))*([Charge-e]^2)*[Avaga-no]*4*3).
How to calculate Madelung Constant using Born Lande Equation?
With Lattice Energy (U), Distance of Closest Approach (r0), Born Exponent (nborn), Charge of Cation (z+) & Charge of Anion (z-) we can find Madelung Constant using Born Lande Equation using the formula - Madelung Constant = (-Lattice Energy*4*pi*[Permitivity-vacuum]*Distance of Closest Approach)/((1-(1/Born Exponent))*([Charge-e]^2)*[Avaga-no]*Charge of Cation*Charge of Anion). This formula also uses Permittivity of vacuum, Charge of electron, Avogadro’s number, Archimedes' constant .
What are the other ways to Calculate Madelung Constant?
Here are the different ways to Calculate Madelung Constant-
  • Madelung Constant=(Repulsive Interaction Constant given M*4*pi*[Permitivity-vacuum]*Born Exponent)/((Charge^2)*([Charge-e]^2)*(Distance of Closest Approach^(Born Exponent-1)))OpenImg
  • Madelung Constant=(-Lattice Energy*4*pi*[Permitivity-vacuum]*Distance of Closest Approach)/([Avaga-no]*Charge of Cation*Charge of Anion*([Charge-e]^2)*(1-(Constant Depending on Compressibility/Distance of Closest Approach)))OpenImg
  • Madelung Constant=0.88*Number of IonsOpenImg
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