Covalent Radius from Allred Rochow's Electronegativity Calculator

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Electronegativity

Covalent Bonding

Ionic Bonding

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Allred Rochow's Electronegativity

Mulliken's Electronegativity

Pauling's Electronegativity

✖The Effective Nuclear Charge is the net positive charge experienced by an electron in a polyelectronic atom.ⓘ Effective Nuclear Charge [Z]			+10% -10%
✖The Allred-Rochow's Electronegativity should be related to the charge experienced by an electron on the "surface" of an atom.ⓘ Allred-Rochow's Electronegativity [X_A.R]			+10% -10%

✖The Covalent Radius is a measure of the size of an atom that forms part of one covalent bond.ⓘ Covalent Radius from Allred Rochow's Electronegativity [r_covalent]

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Formula

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Covalent Radius from Allred Rochow's Electronegativity

Formula

`"r"_{"covalent"} = sqrt((0.359*"Z")/"X"_{"A.R"})`

Example

`"1.175061A"=sqrt((0.359*"25")/"6.5J")`

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Covalent Radius from Allred Rochow's Electronegativity Solution

STEP 0: Pre-Calculation Summary

Formula Used

Covalent Radius = sqrt((0.359*Effective Nuclear Charge)/Allred-Rochow's Electronegativity)
r_covalent = sqrt((0.359*Z)/X_A.R)
This formula uses 1 Functions, 3 Variables

Functions Used

sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(Number)

Variables Used

Covalent Radius - (Measured in Angstrom) - The Covalent Radius is a measure of the size of an atom that forms part of one covalent bond.
Effective Nuclear Charge - The Effective Nuclear Charge is the net positive charge experienced by an electron in a polyelectronic atom.
Allred-Rochow's Electronegativity - (Measured in Joule) - The Allred-Rochow's Electronegativity should be related to the charge experienced by an electron on the "surface" of an atom.

STEP 1: Convert Input(s) to Base Unit

Effective Nuclear Charge: 25 --> No Conversion Required
Allred-Rochow's Electronegativity: 6.5 Joule --> 6.5 Joule No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

r_covalent = sqrt((0.359*Z)/X_A.R) --> sqrt((0.359*25)/6.5)

Evaluating ... ...

r_covalent = 1.17506137319258

STEP 3: Convert Result to Output's Unit

1.17506137319258E-10 Meter -->1.17506137319258 Angstrom (Check conversion here)

FINAL ANSWER

1.17506137319258 ≈ 1.175061 Angstrom <-- Covalent Radius

(Calculation completed in 00.004 seconds)

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< 9 Allred Rochow's Electronegativity Calculators

Allred Rochow's Electronegativity using Bond Energies

Go Allred-Rochow's Electronegativity = sqrt(Actual Bond Energy given Electronegativity-sqrt(Bond Energy of A₂ Molecule*Bond Energy of B₂ Molecule))-0.744

Effective Nuclear Charge from Allred Rochow's Electronegativity

Go Effective Nuclear Charge = (Allred-Rochow's Electronegativity*Covalent Radius*Covalent Radius)/0.359

Covalent Radius from Allred Rochow's Electronegativity

Go Covalent Radius = sqrt((0.359*Effective Nuclear Charge)/Allred-Rochow's Electronegativity)

Allred Rochow's Electronegativity given IE and EA

Go Allred-Rochow's Electronegativity = ((0.336*0.5)*(Ionization Energy+Electron Affinity))-0.2-0.744

Electron Affinity of Element using Allred Rochow's Electronegativity

Go Electron Affinity = ((Allred-Rochow's Electronegativity+0.744+0.2)*(2/0.336))-Ionization Energy

Ionization Energy using Allred Rochow's Electronegativity

Go Ionization Energy = ((Allred-Rochow's Electronegativity+0.744+0.2)*(2/0.336))-Electron Affinity

Allred Rochow's Electronegativity of Element

Go Allred-Rochow's Electronegativity = (0.359*Effective Nuclear Charge)/(Covalent Radius^2)

Allred Rochow's Electronegativity from Mulliken's Electronegativity

Go Allred-Rochow's Electronegativity = (0.336*Mulliken's Electronegativity)-0.2-0.744

Allred Rochow's Electronegativity from Pauling's Electronegativity

Go Allred-Rochow's Electronegativity = Pauling's Electronegativity-0.744

Covalent Radius from Allred Rochow's Electronegativity Formula

Covalent Radius = sqrt((0.359*Effective Nuclear Charge)/Allred-Rochow's Electronegativity)
r_covalent = sqrt((0.359*Z)/X_A.R)

What was Allred-Rochow's contribution to electronegativity?

A. Louis Allred and Eugene G. Rochow considered that electronegativity should be related to the charge experienced by an electron on the "surface" of an atom: The higher the charge per unit area of atomic surface the greater the tendency of that atom to attract electrons. The effective nuclear charge experienced by valence electrons can be estimated using Slater's rules, while the surface area of an atom in a molecule can be taken to be proportional to the square of the covalent radius.

How to Calculate Covalent Radius from Allred Rochow's Electronegativity?

Covalent Radius from Allred Rochow's Electronegativity calculator uses Covalent Radius = sqrt((0.359*Effective Nuclear Charge)/Allred-Rochow's Electronegativity) to calculate the Covalent Radius, The Covalent radius from Allred Rochow's Electronegativity is a measure of the size of an atom that forms part of one covalent bond measured in Angstroms. Covalent Radius is denoted by r_covalent symbol.

How to calculate Covalent Radius from Allred Rochow's Electronegativity using this online calculator? To use this online calculator for Covalent Radius from Allred Rochow's Electronegativity, enter Effective Nuclear Charge (Z) & Allred-Rochow's Electronegativity (X_A.R) and hit the calculate button. Here is how the Covalent Radius from Allred Rochow's Electronegativity calculation can be explained with given input values -> 1.2E+10 = sqrt((0.359*25)/6.5).

FAQ

What is Covalent Radius from Allred Rochow's Electronegativity?

The Covalent radius from Allred Rochow's Electronegativity is a measure of the size of an atom that forms part of one covalent bond measured in Angstroms and is represented as r_covalent = sqrt((0.359*Z)/X_A.R) or Covalent Radius = sqrt((0.359*Effective Nuclear Charge)/Allred-Rochow's Electronegativity). The Effective Nuclear Charge is the net positive charge experienced by an electron in a polyelectronic atom & The Allred-Rochow's Electronegativity should be related to the charge experienced by an electron on the "surface" of an atom.

How to calculate Covalent Radius from Allred Rochow's Electronegativity?

The Covalent radius from Allred Rochow's Electronegativity is a measure of the size of an atom that forms part of one covalent bond measured in Angstroms is calculated using Covalent Radius = sqrt((0.359*Effective Nuclear Charge)/Allred-Rochow's Electronegativity). To calculate Covalent Radius from Allred Rochow's Electronegativity, you need Effective Nuclear Charge (Z) & Allred-Rochow's Electronegativity (X_A.R). With our tool, you need to enter the respective value for Effective Nuclear Charge & Allred-Rochow's Electronegativity and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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