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Radius Ratio Formula

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The Radius Ratio is the ratio of radius of cation to radius of anion. Check FAQs

R ratio = \frac{R c}{R a}

R_ratio - Radius Ratio?R_c - Radius of Cation?R_a - Radius of Anion?

Radius Ratio Example

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Here is how the Radius Ratio equation looks like with Values.

Here is how the Radius Ratio equation looks like with Units.

Here is how the Radius Ratio equation looks like.

1.2621 = \frac{65}{51.5}

1.2621 = \frac{65A}{51.5A}

1.2621 = \frac{65}{51.5}

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Radius Ratio Solution

Follow our step by step solution on how to calculate Radius Ratio?

FIRST Step Consider the formula

R ratio = \frac{R c}{R a}

Next Step Substitute values of Variables

∴

R ratio = \frac{65A}{51.5A}

Next Step Convert Units

∴

R ratio = \frac{6.5E-9m}{5.2E-9m}

Next Step Prepare to Evaluate

∴

R ratio = \frac{6.5E-9}{5.2E-9}

Next Step Evaluate

∴

R ratio = 1.2621359223301

LAST Step Rounding Answer

∴

R ratio = 1.2621

Radius Ratio Formula Elements

Variables

Radius Ratio

The Radius Ratio is the ratio of radius of cation to radius of anion.

Symbol: R_ratio

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Radius Ratio

Radius of Cation

The Radius of Cation is the radius of the positively charged ion in the crystal structure.

Symbol: R_c

Measurement: LengthUnit: A

Note: Value can be positive or negative.

Formulas to find Radius of Cation

Radius of Anion

The Radius of Anion is the radius of negatively charged ion in the crystal.

Symbol: R_a

Measurement: LengthUnit: A

Note: Value can be positive or negative.

Formulas to find Radius of Anion

Other formulas in Lattice category

Go Packing Efficiency

P = (\frac{v}{V}) \cdot 100

Go Edge length of Simple cubic unit cell

a = 2 \cdot R

Go Edge length of Body Centered Unit Cell

a = 4 \cdot \frac{R}{\sqrt{3}}

Go Edge Length of Face Centered Unit Cell

a = 2 \cdot \sqrt{2} \cdot R

How to Evaluate Radius Ratio?

Radius Ratio evaluator uses Radius Ratio = Radius of Cation/Radius of Anion to evaluate the Radius Ratio, The Radius Ratio formula is defined as the ratio of radius of cation to the radius of anion. It is used to predict the coordination number. Radius Ratio is denoted by R_ratio symbol.

How to evaluate Radius Ratio using this online evaluator? To use this online evaluator for Radius Ratio, enter Radius of Cation (R_c) & Radius of Anion (R_a) and hit the calculate button.

FAQs on Radius Ratio

What is the formula to find Radius Ratio?

The formula of Radius Ratio is expressed as Radius Ratio = Radius of Cation/Radius of Anion. Here is an example- 1.262136 = 6.5E-09/5.15E-09.

How to calculate Radius Ratio?

With Radius of Cation (R_c) & Radius of Anion (R_a) we can find Radius Ratio using the formula - Radius Ratio = Radius of Cation/Radius of Anion.

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Radius Ratio Formula

Radius Ratio Example

Radius Ratio Solution

Radius Ratio Formula Elements

Other formulas in Lattice category

How to Evaluate Radius Ratio?

FAQs on Radius Ratio

Variable Name