Polarization of an Atom - Revision history

Pallavisun at 02:07, 28 April 2026

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	https://www.britannica.com/science/quantum-mechanics-physics		https://www.britannica.com/science/quantum-mechanics-physics

	https://ocw.mit.edu		https://ocw.mit.edu/courses/8-02-physics-ii-electricity-and-magnetism-spring-2007/

	http://hyperphysics.phy-astr.gsu.edu/hbase/electric/dipole.html		http://hyperphysics.phy-astr.gsu.edu/hbase/electric/dipole.html

	[[Category:Fields]]		[[Category:Fields]]

Pallavisun at 02:06, 28 April 2026

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	https://www.britannica.com/science/quantum-mechanics-physics		https://www.britannica.com/science/quantum-mechanics-physics

			https://ocw.mit.edu

			http://hyperphysics.phy-astr.gsu.edu/hbase/electric/dipole.html

	[[Category:Fields]]		[[Category:Fields]]

Pallavisun at 02:03, 28 April 2026

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	Δα = 4.32 x 10^-40 C^2/m^2		Δα = 4.32 x 10^-40 C^2/m^2

			== Interactive Simulation ==

			To better understand atomic polarization, an interactive model can be used to visualize the displacement of the electron cloud in response to an external electric field.

			'''Instructions:'''
			* Run the simulation.
			* Observe how the electron cloud moves away from its original centered position.
			* Notice that the atom remains neutral overall, but its charge distribution becomes asymmetric.
			* This asymmetry creates an induced dipole.

			[https://www.glowscript.org/#/user/pallavisun/folder/MyPrograms/program/wiki Interactive GlowScript Simulation: Atomic Polarization]

	==Applicability in Everyday Life==		==Applicability in Everyday Life==

Pallavisun at 01:48, 28 April 2026

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	The polarization of atoms plays a crucial role in various scientific phenomena and technological applications. When atoms become polarized, they can interact with other polarized atoms or molecules, leading to a range of forces and effects. For instance, the temporary polarization of nonpolar molecules gives rise to London dispersion forces, which are weak attractive forces that significantly influence the physical properties of substances. Furthermore, the polarizability of atoms and molecules can impact their behavior in electric fields, which is essential for understanding their roles in electronic devices, chemical reactions, and spectroscopy. By studying atomic polarization, researchers can gain a deeper understanding of atomic and molecular interactions, paving the way for advancements in materials science, electronics, and chemistry.		The polarization of atoms plays a crucial role in various scientific phenomena and technological applications. When atoms become polarized, they can interact with other polarized atoms or molecules, leading to a range of forces and effects. For instance, the temporary polarization of nonpolar molecules gives rise to London dispersion forces, which are weak attractive forces that significantly influence the physical properties of substances. Furthermore, the polarizability of atoms and molecules can impact their behavior in electric fields, which is essential for understanding their roles in electronic devices, chemical reactions, and spectroscopy. By studying atomic polarization, researchers can gain a deeper understanding of atomic and molecular interactions, paving the way for advancements in materials science, electronics, and chemistry.
			=== Physical Intuition of Atomic Polarization ===
			Atomic polarization occurs when an external electric field distorts the distribution of charge within an atom, shifting the electron cloud relative to the nucleus and forming an induced dipole. In a uniform electric field, the forces acting on the positive nucleus and negative electron cloud are equal in magnitude and opposite in direction. As a result, there is:
			*No net force on the atom
			*Only a possible rotational effect (torque)
			In a non-uniform electric field, the magnitude of the field varies with position. This leads to:
			*A stronger force on the side of the atom closer to the source
			*A weaker force on the farther side
			This imbalance produces a net force toward the region of stronger electric field, causing neutral atoms to be attracted to charged objects.

	===Calculations Relating to Polarization of Atoms===		===Calculations Relating to Polarization of Atoms===
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	This shows that the dipole moment is directly proportional to the magnitude of the applied electric field '''E'''. The constant '''α''' is called the "polarizability" of a particular material. Many of these polarizability values have been measured experimentally and can be found in reference volumes.		This shows that the dipole moment is directly proportional to the magnitude of the applied electric field '''E'''. The constant '''α''' is called the "polarizability" of a particular material. Many of these polarizability values have been measured experimentally and can be found in reference volumes.

			==== Linear and Nonlinear Regimes ====
			This relationship is valid for relatively weak electric fields. At very high field strengths:
			*The response becomes nonlinear
			*The electron cloud cannot be displaced indefinitely
			*Atomic structure limits further polarization
	[[File:Picture for Wiki Atom Polarization.JPG]]		[[File:Picture for Wiki Atom Polarization.JPG]]

Pallavisun at 03:20, 14 April 2026

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	Edited by ~~Amie Yang~~ - Spring ~~2023~~		Edited by Pallavi Sundaram - Spring 2026

	This page serves to outline and explain the inner workings and hidden mechanisms of the polarization of an atom.		This page serves to outline and explain the inner workings and hidden mechanisms of the polarization of an atom.

Ayang319: /* Introduction */

2023-04-16T23:12:58Z

Introduction

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	More specifically, these external charges create apply an electric force on atom constituents. For example, if a positive charge is placed to the left of an atom, an electric field will be created that shifts the electron cloud of the atom towards the positive charge (to the left) and will shift the net positive nucleus away from the charge (to the right) as two objects of the same charge repel each other. In this case, it is now more probable to find an electron to the left of the nucleus, rather than the right.		More specifically, these external charges create apply an electric force on atom constituents. For example, if a positive charge is placed to the left of an atom, an electric field will be created that shifts the electron cloud of the atom towards the positive charge (to the left) and will shift the net positive nucleus away from the charge (to the right) as two objects of the same charge repel each other. In this case, it is now more probable to find an electron to the left of the nucleus, rather than the right.

			The polarization of atoms plays a crucial role in various scientific phenomena and technological applications. When atoms become polarized, they can interact with other polarized atoms or molecules, leading to a range of forces and effects. For instance, the temporary polarization of nonpolar molecules gives rise to London dispersion forces, which are weak attractive forces that significantly influence the physical properties of substances. Furthermore, the polarizability of atoms and molecules can impact their behavior in electric fields, which is essential for understanding their roles in electronic devices, chemical reactions, and spectroscopy. By studying atomic polarization, researchers can gain a deeper understanding of atomic and molecular interactions, paving the way for advancements in materials science, electronics, and chemistry.

	===Calculations Relating to Polarization of Atoms===		===Calculations Relating to Polarization of Atoms===
	The following are equations mediating these interactions. First and most importantly, electric fields are the product of field source charge and the distance to the observation location at which you would like to find the electric field value. Coulomb's Law allows us to calculate this for a point charge:		The following are equations mediating these interactions. First and most importantly, electric fields are the product of field source charge and the distance to the observation location at which you would like to find the electric field value. Coulomb's Law allows us to calculate this for a point charge:

	The polarization of atoms plays a crucial role in various scientific phenomena and technological applications. When atoms become polarized, they can interact with other polarized atoms or molecules, leading to a range of forces and effects. For instance, the temporary polarization of nonpolar molecules gives rise to London dispersion forces, which are weak attractive forces that significantly influence the physical properties of substances. Furthermore, the polarizability of atoms and molecules can impact their behavior in electric fields, which is essential for understanding their roles in electronic devices, chemical reactions, and spectroscopy. By studying atomic polarization, researchers can gain a deeper understanding of atomic and molecular interactions, paving the way for advancements in materials science, electronics, and chemistry.

	<math>{\vec{E} = \frac{1}{4\pi\varepsilon_0} \frac{q}{r^2}}</math>		<math>{\vec{E} = \frac{1}{4\pi\varepsilon_0} \frac{q}{r^2}}</math>

Ayang319: /* Introduction */

2023-04-16T23:11:41Z

Introduction

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	===Calculations Relating to Polarization of Atoms===		===Calculations Relating to Polarization of Atoms===
	The following are equations mediating these interactions. First and most importantly, electric fields are the product of field source charge and the distance to the observation location at which you would like to find the electric field value. Coulomb's Law allows us to calculate this for a point charge:		The following are equations mediating these interactions. First and most importantly, electric fields are the product of field source charge and the distance to the observation location at which you would like to find the electric field value. Coulomb's Law allows us to calculate this for a point charge:

			The polarization of atoms plays a crucial role in various scientific phenomena and technological applications. When atoms become polarized, they can interact with other polarized atoms or molecules, leading to a range of forces and effects. For instance, the temporary polarization of nonpolar molecules gives rise to London dispersion forces, which are weak attractive forces that significantly influence the physical properties of substances. Furthermore, the polarizability of atoms and molecules can impact their behavior in electric fields, which is essential for understanding their roles in electronic devices, chemical reactions, and spectroscopy. By studying atomic polarization, researchers can gain a deeper understanding of atomic and molecular interactions, paving the way for advancements in materials science, electronics, and chemistry.

	<math>{\vec{E} = \frac{1}{4\pi\varepsilon_0} \frac{q}{r^2}}</math>		<math>{\vec{E} = \frac{1}{4\pi\varepsilon_0} \frac{q}{r^2}}</math>

Ayang319: /* Further reading */

2023-04-16T23:10:04Z

Ayang319: /* Further reading */

2023-04-16T23:09:42Z

Ayang319: /* External links */

2023-04-16T23:07:35Z

External links

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	http://www.hho4free.com/electrical_polarization.htm		http://www.hho4free.com/electrical_polarization.htm

			http://hyperphysics.phy-astr.gsu.edu/hbase/permot3.html

			http://faculty.ucr.edu/~froehlic/lectnotes/polarization.pdf

			https://physics.stackexchange.com/questions/159377/polarizability-of-atoms-and-molecules

	==References==		==References==

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	*''Polarization Propagator Methods in Atomic and Molecular Calculations'' by Jens Oddershede, Poul Jørgensen, and Danny L. Yeager		*''Polarization Propagator Methods in Atomic and Molecular Calculations'' by Jens Oddershede, Poul Jørgensen, and Danny L. Yeager
	*''Phase of the Atomic Polarization in High-Order Harmonic Generation'' by Maciej Lewenstein, Pascal Salières, and Anne L’Huillier		*''Phase of the Atomic Polarization in High-Order Harmonic Generation'' by Maciej Lewenstein, Pascal Salières, and Anne L’Huillier
	*''Polarization, Alignment, and Orientation in Atomic Collisions" by Nils Andersen and Klaus Bartschat''		*''Polarization, Alignment, and Orientation in Atomic Collisions'' by Nils Andersen and Klaus Bartschat

	===External links===		===External links===

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	*''Polarization Propagator Methods in Atomic and Molecular Calculations'' by Jens Oddershede, Poul Jørgensen, and Danny L. Yeager		*''Polarization Propagator Methods in Atomic and Molecular Calculations'' by Jens Oddershede, Poul Jørgensen, and Danny L. Yeager
	*''Phase of the Atomic Polarization in High-Order Harmonic Generation'' by Maciej Lewenstein, Pascal Salières, and Anne L’Huillier		*''Phase of the Atomic Polarization in High-Order Harmonic Generation'' by Maciej Lewenstein, Pascal Salières, and Anne L’Huillier
			*''Polarization, Alignment, and Orientation in Atomic Collisions" by Nils Andersen and Klaus Bartschat''

	===External links===		===External links===