Effective Nuclear Charge 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 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 [r_covalent]			+10% -10%

✖The Effective Nuclear Charge is the net positive charge experienced by an electron in a polyelectronic atom.ⓘ Effective Nuclear Charge from Allred Rochow's Electronegativity [Z]

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Formula

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Effective Nuclear Charge from Allred Rochow's Electronegativity

Formula

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

Example

`"25.21058"=("6.5J"*"1.18A"*"1.18A")/0.359`

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Effective Nuclear Charge from Allred Rochow's Electronegativity Solution

STEP 0: Pre-Calculation Summary

Formula Used

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

Variables Used

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.
Covalent Radius - (Measured in Angstrom) - The Covalent Radius is a measure of the size of an atom that forms part of one covalent bond.

STEP 1: Convert Input(s) to Base Unit

Allred-Rochow's Electronegativity: 6.5 Joule --> 6.5 Joule No Conversion Required
Covalent Radius: 1.18 Angstrom --> 1.18 Angstrom No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Z = (X_A.R*r_covalent*r_covalent)/0.359 --> (6.5*1.18*1.18)/0.359

Evaluating ... ...

Z = 25.2105849582173

STEP 3: Convert Result to Output's Unit

25.2105849582173 --> No Conversion Required

FINAL ANSWER

25.2105849582173 ≈ 25.21058 <-- Effective Nuclear Charge

(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

Effective Nuclear Charge from Allred Rochow's Electronegativity Formula

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

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 Effective Nuclear Charge from Allred Rochow's Electronegativity?

Effective Nuclear Charge from Allred Rochow's Electronegativity calculator uses Effective Nuclear Charge = (Allred-Rochow's Electronegativity*Covalent Radius*Covalent Radius)/0.359 to calculate the Effective Nuclear Charge, The Effective Nuclear Charge from Allred Rochow's Electronegativity is the net positive charge experienced by an electron in a polyelectronic atom. Effective Nuclear Charge is denoted by Z symbol.

How to calculate Effective Nuclear Charge from Allred Rochow's Electronegativity using this online calculator? To use this online calculator for Effective Nuclear Charge from Allred Rochow's Electronegativity, enter Allred-Rochow's Electronegativity (X_A.R) & Covalent Radius (r_covalent) and hit the calculate button. Here is how the Effective Nuclear Charge from Allred Rochow's Electronegativity calculation can be explained with given input values -> 25.21058 = (6.5*1.18E-10*1.18E-10)/0.359.

FAQ

What is Effective Nuclear Charge from Allred Rochow's Electronegativity?

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

How to calculate Effective Nuclear Charge from Allred Rochow's Electronegativity?

The Effective Nuclear Charge from Allred Rochow's Electronegativity is the net positive charge experienced by an electron in a polyelectronic atom is calculated using Effective Nuclear Charge = (Allred-Rochow's Electronegativity*Covalent Radius*Covalent Radius)/0.359. To calculate Effective Nuclear Charge from Allred Rochow's Electronegativity, you need Allred-Rochow's Electronegativity (X_A.R) & Covalent Radius (r_covalent). With our tool, you need to enter the respective value for Allred-Rochow's Electronegativity & Covalent Radius 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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