Niels Bohr - Revision history

Ehenderson32 at 00:31, 6 December 2015

2015-12-06T00:31:09Z

← Older revision		Revision as of 20:31, 5 December 2015
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	Bohr's model of the atom was new unlike planetary models of atoms. Bohr started his research and explanations with Darwin's paper on the role of electrons in the interaction of alpha particles with a nucleus. Using this, Bohr introduced the idea that an electron could drop from a higher-energy orbit to a lower-energy orbit while emitting a quantum of discrete energy. This theory became the underlying theory in the old quantum theory.		Bohr's model of the atom was new unlike planetary models of atoms. Bohr started his research and explanations with Darwin's paper on the role of electrons in the interaction of alpha particles with a nucleus. Using this, Bohr introduced the idea that an electron could drop from a higher-energy orbit to a lower-energy orbit while emitting a quantum of discrete energy. This theory became the underlying theory in the old quantum theory.

	In 1885, about 30 years before Bohr came up with his model, Johann Balmer came up with the Balmer series which was an equation used to describe the visible spectral lines of a hydrogen atom. It was confirmed that Balmer's formula (below) worked but no one could explain why it worked.

	~~<math>{\frac{1}{\lambda}} = R_\mathrm{H}\left{\frac{1}{2^2} - \frac{1}{n^2}\right}}<\math> {for~} n=3,4,5,...~~

	~~where λ is the wavelength of the absorbed or emitted light and RH is the Rydberg constant. When Bohr came up with his model of the hydrogen atom he was able to derive from his model why it worked:~~

	~~R_Z = { 2\pi^2 m_e Z^2 e^4 \over h^3 }~~

	~~where me is the electron's mass, e is its charge, h is Planck's constant and Z is the atom's atomic number.~~

	Compared to the valence shell atom the Bohr model is mostly a simple and natural model of the hydrogen atom. In theory, the Bohr model can be derived as a first order approximation of the hydrogen atom. The theory uses broad and more accurate quantum mechanics than the hydrogen atom, so it is considered an obsolete scientific theory. This model is commonly used to give students an introduction to quantum mechanics.		Compared to the valence shell atom the Bohr model is mostly a simple and natural model of the hydrogen atom. In theory, the Bohr model can be derived as a first order approximation of the hydrogen atom. The theory uses broad and more accurate quantum mechanics than the hydrogen atom, so it is considered an obsolete scientific theory. This model is commonly used to give students an introduction to quantum mechanics.

Ehenderson32 at 01:53, 5 December 2015

2015-12-05T01:53:45Z

← Older revision		Revision as of 21:53, 4 December 2015
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	In 1885, about 30 years before Bohr came up with his model, Johann Balmer came up with the Balmer series which was an equation used to describe the visible spectral lines of a hydrogen atom. It was confirmed that Balmer's formula (below) worked but no one could explain why it worked.		In 1885, about 30 years before Bohr came up with his model, Johann Balmer came up with the Balmer series which was an equation used to describe the visible spectral lines of a hydrogen atom. It was confirmed that Balmer's formula (below) worked but no one could explain why it worked.

	<math> {\frac{1}{\lambda} = R_\mathrm{H}\left(\frac{1}{2^2} - \frac{1}{n^2}\right~~) \quad~~ <\math> {for~} n=3,4,5,...		<math>{\frac{1}{\lambda}} = R_\mathrm{H}\left{\frac{1}{2^2} - \frac{1}{n^2}\right}}<\math> {for~} n=3,4,5,...

	where λ is the wavelength of the absorbed or emitted light and RH is the Rydberg constant. When Bohr came up with his model of the hydrogen atom he was able to derive from his model why it worked:		where λ is the wavelength of the absorbed or emitted light and RH is the Rydberg constant. When Bohr came up with his model of the hydrogen atom he was able to derive from his model why it worked:

Ehenderson32 at 01:51, 5 December 2015

2015-12-05T01:51:29Z

← Older revision		Revision as of 21:51, 4 December 2015
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	In 1885, about 30 years before Bohr came up with his model, Johann Balmer came up with the Balmer series which was an equation used to describe the visible spectral lines of a hydrogen atom. It was confirmed that Balmer's formula (below) worked but no one could explain why it worked.		In 1885, about 30 years before Bohr came up with his model, Johann Balmer came up with the Balmer series which was an equation used to describe the visible spectral lines of a hydrogen atom. It was confirmed that Balmer's formula (below) worked but no one could explain why it worked.

	\frac{1}{\lambda} = R_\mathrm{H}\left(\frac{1}{2^2} - \frac{1}{n^2}\right) \quad \~~mathrm~~{for~} n=3,4,5,...		<math> {\frac{1}{\lambda} = R_\mathrm{H}\left(\frac{1}{2^2} - \frac{1}{n^2}\right) \quad <\math> {for~} n=3,4,5,...

	where λ is the wavelength of the absorbed or emitted light and RH is the Rydberg constant. When Bohr came up with his model of the hydrogen atom he was able to derive from his model why it worked:		where λ is the wavelength of the absorbed or emitted light and RH is the Rydberg constant. When Bohr came up with his model of the hydrogen atom he was able to derive from his model why it worked:

Ehenderson32 at 01:49, 5 December 2015

2015-12-05T01:49:41Z

← Older revision		Revision as of 21:49, 4 December 2015
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	==Physics==		==Physics==

	~~Be sure~~ to ~~show all steps~~ in ~~your solution~~ and ~~include diagrams whenever possible~~		===The Bohr Model===

			Niels Bohr introduced the Bohr model of the atom in 1913. This model depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus. The Bohr model is basically a quantum physical understanding of the earlier Rutherford model. The Bohr model helped to explain the reason for the structure of the Rydberg formula. It also helped justify the formula's empirical results concerning fundamental physical constants.

			Bohr's model of the atom was new unlike planetary models of atoms. Bohr started his research and explanations with Darwin's paper on the role of electrons in the interaction of alpha particles with a nucleus. Using this, Bohr introduced the idea that an electron could drop from a higher-energy orbit to a lower-energy orbit while emitting a quantum of discrete energy. This theory became the underlying theory in the old quantum theory.

			In 1885, about 30 years before Bohr came up with his model, Johann Balmer came up with the Balmer series which was an equation used to describe the visible spectral lines of a hydrogen atom. It was confirmed that Balmer's formula (below) worked but no one could explain why it worked.

			\frac{1}{\lambda} = R_\mathrm{H}\left(\frac{1}{2^2} - \frac{1}{n^2}\right) \quad \mathrm{for~} n=3,4,5,...

			where λ is the wavelength of the absorbed or emitted light and RH is the Rydberg constant. When Bohr came up with his model of the hydrogen atom he was able to derive from his model why it worked:

	=~~==The Bohr Model===~~		R_Z = { 2\pi^2 m_e Z^2 e^4 \over h^3 }

	~~Niels Bohr introduced~~ the ~~Bohr model of the atom in 1913. This model depicts the atom as a small~~, ~~positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus. The Bohr model~~ is ~~basically a quantum physical understanding of~~ the ~~earlier Rusherford model. The Bohr model helped to explain the reason for the structure of the Rydberg formula. It also helped justify the formula~~'s ~~empirical results concerning fundamental physical constants~~.		where me is the electron's mass, e is its charge, h is Planck's constant and Z is the atom's atomic number.

	Compared to the valence shell atom the Bohr model is mostly a simple and natural model of the hydrogen atom. In theory, the Bohr model can be derived as a first order approximation of the hydrogen atom. The theory uses broad and more accurate quantum mechanics than the hydrogen atom, so it is considered an obsolete scientific theory. This model is commonly used to give students an introduction to quantum mechanics.		Compared to the valence shell atom the Bohr model is mostly a simple and natural model of the hydrogen atom. In theory, the Bohr model can be derived as a first order approximation of the hydrogen atom. The theory uses broad and more accurate quantum mechanics than the hydrogen atom, so it is considered an obsolete scientific theory. This model is commonly used to give students an introduction to quantum mechanics.

	~~[[File:bohrmodel.jpg]]~~

	===Quantam Mechanics===		===Quantam Mechanics===

Ehenderson32 at 01:35, 5 December 2015

2015-12-05T01:35:34Z

← Older revision		Revision as of 21:35, 4 December 2015
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	Compared to the valence shell atom the Bohr model is mostly a simple and natural model of the hydrogen atom. In theory, the Bohr model can be derived as a first order approximation of the hydrogen atom. The theory uses broad and more accurate quantum mechanics than the hydrogen atom, so it is considered an obsolete scientific theory. This model is commonly used to give students an introduction to quantum mechanics.		Compared to the valence shell atom the Bohr model is mostly a simple and natural model of the hydrogen atom. In theory, the Bohr model can be derived as a first order approximation of the hydrogen atom. The theory uses broad and more accurate quantum mechanics than the hydrogen atom, so it is considered an obsolete scientific theory. This model is commonly used to give students an introduction to quantum mechanics.

			[[File:bohrmodel.jpg]]

	===Quantam Mechanics===		===Quantam Mechanics===

Ehenderson32 at 23:56, 3 December 2015

2015-12-03T23:56:41Z

← Older revision		Revision as of 19:56, 3 December 2015
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	this page is claimed by Elizabeth Henderson		this page is claimed by Elizabeth Henderson (ehenderson32)



	==Bohr's Early Life==		==Bohr's Early Life==
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	Niels Henrik David Bohr was born on October 7, 1885 in Copenhagen, Denmark. His father, Christian Bohr was the Professor of Physiology at Copenhagen University. Growing up as University Professor's sons, Niels and his little brother Herald acquired their curiosity of physics and mathematics at an early age. Niels mother, Ellen Bohr, came from a family with a background in education. Niels attended Gammelholm Grammar School before entering Copenhagen University in 1903. In 1909, he pursued his Master's degree in Physics under the teaching of Professor C. Christiansen, a highly endowed physicist. In 1911, Niels earned his Doctor's degree.		Niels Henrik David Bohr was born on October 7, 1885 in Copenhagen, Denmark. His father, Christian Bohr was the Professor of Physiology at Copenhagen University. Growing up as University Professor's sons, Niels and his little brother Herald acquired their curiosity of physics and mathematics at an early age. Niels mother, Ellen Bohr, came from a family with a background in education. Niels attended Gammelholm Grammar School before entering Copenhagen University in 1903. In 1909, he pursued his Master's degree in Physics under the teaching of Professor C. Christiansen, a highly endowed physicist. In 1911, Niels earned his Doctor's degree.

			Bohr doctor's disputation was a theorhetical piece of work on the explanation of the properties of metals. He used the electron theory to aid him in his research. It was during this time that he


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	===The Bohr Model===		===The Bohr Model===

			Niels Bohr introduced the Bohr model of the atom in 1913. This model depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus. The Bohr model is basically a quantum physical understanding of the earlier Rusherford model. The Bohr model helped to explain the reason for the structure of the Rydberg formula. It also helped justify the formula's empirical results concerning fundamental physical constants.

			Compared to the valence shell atom the Bohr model is mostly a simple and natural model of the hydrogen atom. In theory, the Bohr model can be derived as a first order approximation of the hydrogen atom. The theory uses broad and more accurate quantum mechanics than the hydrogen atom, so it is considered an obsolete scientific theory. This model is commonly used to give students an introduction to quantum mechanics.

	===Quantam Mechanics===		===Quantam Mechanics===


	===The Manhattan Project===		===The Manhattan Project===

			==The Nobel Prize==

			Put this idea in historical context. Give the reader the Who, What, When, Where, and Why.

	==Connectedness==		==Connectedness==
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	#Is there an interesting industrial application?		#Is there an interesting industrial application?

	~~==History==~~

	~~Put this idea in historical context. Give the reader the Who, What, When, Where, and Why.~~
	== See also ==		== See also ==

	Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?		Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?

			===Qutoes by Bohr===

	===Further reading===		===Further reading===

Ehenderson32: /* Examples */

2015-11-25T15:16:42Z

Examples

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	How do we visualize or predict using this topic. Consider embedding some vpython code here [https://trinket.io/glowscript/31d0f9ad9e Teach hands-on with GlowScript]		How do we visualize or predict using this topic. Consider embedding some vpython code here [https://trinket.io/glowscript/31d0f9ad9e Teach hands-on with GlowScript]

	==~~Examples~~==		==Physics==

	Be sure to show all steps in your solution and include diagrams whenever possible		Be sure to show all steps in your solution and include diagrams whenever possible

	===~~Simple~~===		===The Bohr Model===
	===~~Middling~~===		===Quantam Mechanics===
	===~~Difficult~~===		===The Manhattan Project===

	==Connectedness==		==Connectedness==

Ehenderson32: /* Bohr's Early Life */

2015-11-25T15:06:50Z

Bohr's Early Life

← Older revision		Revision as of 11:06, 25 November 2015
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	==Bohr's Early Life==		==Bohr's Early Life==

	~~State~~, in ~~your own words~~, the ~~main idea for this topic~~		Niels Henrik David Bohr was born on October 7, 1885 in Copenhagen, Denmark. His father, Christian Bohr was the Professor of Physiology at Copenhagen University. Growing up as University Professor's sons, Niels and his little brother Herald acquired their curiosity of physics and mathematics at an early age. Niels mother, Ellen Bohr, came from a family with a background in education. Niels attended Gammelholm Grammar School before entering Copenhagen University in 1903. In 1909, he pursued his Master's degree in Physics under the teaching of Professor C. Christiansen, a highly endowed physicist. In 1911, Niels earned his Doctor's degree.
	~~Electric Field of Capacitor~~


	===A Mathematical Model===		===A Mathematical Model===

Ehenderson32: /* The Main Idea */

2015-11-25T14:44:47Z

The Main Idea

← Older revision		Revision as of 10:44, 25 November 2015
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	==~~The Main Idea~~==		==Bohr's Early Life==

	State, in your own words, the main idea for this topic		State, in your own words, the main idea for this topic

Ehenderson32 at 14:40, 25 November 2015

2015-11-25T14:40:13Z

← Older revision		Revision as of 10:40, 25 November 2015
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	this page is claimed by Elizabeth Henderson		this page is claimed by Elizabeth Henderson

	~~Short Description of Topic~~
	~~Contents~~

	~~1 The Main Idea~~
	~~1.1 A Mathematical Model~~
	~~1.2 A Computational Model~~
	~~2 Examples~~
	~~2.1 Simple~~
	~~2.2 Middling~~
	~~2.3 Difficult~~
	~~3 Connectedness~~
	~~4 History~~
	~~5 See also~~
	~~5.1 Further reading~~
	~~5.2 External links~~
	~~6 References~~

	==The Main Idea==		==The Main Idea==