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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=(Etot-E)4π[Permitivity-vacuum]r0-(q2)([Charge-e]2)
M - Madelung Constant?Etot - Total energy of Ion in an Ionic Crystal?E - Repulsive Interaction between Ions?r0 - Distance of Closest Approach?q - Charge?[Permitivity-vacuum] - Permittivity of vacuum?[Charge-e] - Charge of electron?π - Archimedes' constant?

Madelung Constant using Total Energy of Ion given Repulsive Interaction Example

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Here is how the Madelung Constant using Total Energy of Ion given Repulsive Interaction equation looks like with Values.

Here is how the Madelung Constant using Total Energy of Ion given Repulsive Interaction equation looks like with Units.

Here is how the Madelung Constant using Total Energy of Ion given Repulsive Interaction equation looks like.

1.6925Edit=(7E-23Edit-5.9E-21Edit)43.14168.9E-1260Edit-(0.3Edit2)(1.6E-192)
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Madelung Constant using Total Energy of Ion given Repulsive Interaction Solution

Follow our step by step solution on how to calculate Madelung Constant using Total Energy of Ion given Repulsive Interaction?

FIRST Step Consider the formula
M=(Etot-E)4π[Permitivity-vacuum]r0-(q2)([Charge-e]2)
Next Step Substitute values of Variables
M=(7E-23J-5.9E-21J)4π[Permitivity-vacuum]60A-(0.3C2)([Charge-e]2)
Next Step Substitute values of Constants
M=(7E-23J-5.9E-21J)43.14168.9E-12F/m60A-(0.3C2)(1.6E-19C2)
Next Step Convert Units
M=(7E-23J-5.9E-21J)43.14168.9E-12F/m6E-9m-(0.3C2)(1.6E-19C2)
Next Step Prepare to Evaluate
M=(7E-23-5.9E-21)43.14168.9E-126E-9-(0.32)(1.6E-192)
Next Step Evaluate
M=1.69248134010118
LAST Step Rounding Answer
M=1.6925

Madelung Constant using Total Energy of Ion given Repulsive Interaction 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.
Total energy of Ion in an Ionic Crystal
The Total energy of Ion in an Ionic Crystal in the lattice is the sum of Madelung Energy and Repulsive potential energy.
Symbol: Etot
Measurement: EnergyUnit: J
Note: Value can be positive or negative.
Repulsive Interaction between Ions
The Repulsive Interaction between Ions is between atoms acts over a very short range, but is very large when distances are short.
Symbol: E
Measurement: EnergyUnit: J
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.
Charge
A Charge is the fundamental property of forms of matter that exhibit electrostatic attraction or repulsion in the presence of other matter.
Symbol: q
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
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 Lande Equation
M=-U4π[Permitivity-vacuum]r0(1-(1nborn))([Charge-e]2)[Avaga-no]z+z-
​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

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 Total Energy of Ion given Repulsive Interaction?

Madelung Constant using Total Energy of Ion given Repulsive Interaction evaluator uses Madelung Constant = ((Total energy of Ion in an Ionic Crystal-Repulsive Interaction between Ions)*4*pi*[Permitivity-vacuum]*Distance of Closest Approach)/(-(Charge^2)*([Charge-e]^2)) to evaluate the Madelung Constant, The Madelung constant using Total Energy of ion given Repulsive Interaction 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 Total Energy of Ion given Repulsive Interaction using this online evaluator? To use this online evaluator for Madelung Constant using Total Energy of Ion given Repulsive Interaction, enter Total energy of Ion in an Ionic Crystal (Etot), Repulsive Interaction between Ions (E), Distance of Closest Approach (r0) & Charge (q) and hit the calculate button.

FAQs on Madelung Constant using Total Energy of Ion given Repulsive Interaction

What is the formula to find Madelung Constant using Total Energy of Ion given Repulsive Interaction?
The formula of Madelung Constant using Total Energy of Ion given Repulsive Interaction is expressed as Madelung Constant = ((Total energy of Ion in an Ionic Crystal-Repulsive Interaction between Ions)*4*pi*[Permitivity-vacuum]*Distance of Closest Approach)/(-(Charge^2)*([Charge-e]^2)). Here is an example- 1.692481 = ((7.02E-23-5.93E-21)*4*pi*[Permitivity-vacuum]*6E-09)/(-(0.3^2)*([Charge-e]^2)).
How to calculate Madelung Constant using Total Energy of Ion given Repulsive Interaction?
With Total energy of Ion in an Ionic Crystal (Etot), Repulsive Interaction between Ions (E), Distance of Closest Approach (r0) & Charge (q) we can find Madelung Constant using Total Energy of Ion given Repulsive Interaction using the formula - Madelung Constant = ((Total energy of Ion in an Ionic Crystal-Repulsive Interaction between Ions)*4*pi*[Permitivity-vacuum]*Distance of Closest Approach)/(-(Charge^2)*([Charge-e]^2)). This formula also uses Permittivity of vacuum, Charge of electron, 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)/((1-(1/Born Exponent))*([Charge-e]^2)*[Avaga-no]*Charge of Cation*Charge of Anion)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
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