Chapter 7 Worksheet November 1
... 8. What might the problem be if our retina could detect low frequency electromagnetic radiation? ...
... 8. What might the problem be if our retina could detect low frequency electromagnetic radiation? ...
WORKSHEET 36: ATOMIC PROPERTIES
... _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 11. Explain carefully, the factor, when moving up and down groups ...
... _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 11. Explain carefully, the factor, when moving up and down groups ...
HL Chemistry: Notes Atomic Theory
... 3. quantized energy Energy occurs in discrete amounts (bundles) called quanta. 4. wave and particle behavior Energy can be thought of as waves or particles - photons represent the dual nature of light. All matter can be discussed this way, but since large pieces of matter have such short wavelengths ...
... 3. quantized energy Energy occurs in discrete amounts (bundles) called quanta. 4. wave and particle behavior Energy can be thought of as waves or particles - photons represent the dual nature of light. All matter can be discussed this way, but since large pieces of matter have such short wavelengths ...
Electron spin and the periodic table
... The ionization energies for the alkali atoms are relatively small. An alkali atom is almost like a hydrogen atom in the sense that the outermost electron sees a well-defined almost impenetrable core that has a charge of +e. The successive alkalis (including H) are then in configurations 1s for H, co ...
... The ionization energies for the alkali atoms are relatively small. An alkali atom is almost like a hydrogen atom in the sense that the outermost electron sees a well-defined almost impenetrable core that has a charge of +e. The successive alkalis (including H) are then in configurations 1s for H, co ...
PHY140Y 32 The Pauli Exclusion Principle
... observed was that multi-electron atoms seemed to have periodic properties. As you added electrons to the atom, one found that the electrons appeared to occupy increasingly higher-energy “shells,” with two electrons per shell. This led to the following principle: You could not have two or more electr ...
... observed was that multi-electron atoms seemed to have periodic properties. As you added electrons to the atom, one found that the electrons appeared to occupy increasingly higher-energy “shells,” with two electrons per shell. This led to the following principle: You could not have two or more electr ...
Remember Question words
... Atomic structure nucleus (protons, neutrons) shells (electrons) shell = a particular region where electrons can orbit the nucleus of an atom valence electron = an electron in the outermost shell of an atom charges (positive = proton; neutral = neutron; negative = ...
... Atomic structure nucleus (protons, neutrons) shells (electrons) shell = a particular region where electrons can orbit the nucleus of an atom valence electron = an electron in the outermost shell of an atom charges (positive = proton; neutral = neutron; negative = ...
Quiz 8
... Note: Pick and choose, depending on how far we get this semester 1. (15 points) Violet light has a wavelength of about 400 nm. A. What is the frequency of this light in units of Hertz (sec-1 ) ...
... Note: Pick and choose, depending on how far we get this semester 1. (15 points) Violet light has a wavelength of about 400 nm. A. What is the frequency of this light in units of Hertz (sec-1 ) ...
Quantum Mechanics
... The fourth quantum number has no letter to represent it, but instead has two possible values. It has a +1/2 or -1/2 spin value and indicates the fundamental spin states of an electron on its own axis within an orbital. Much like the Earth spins on its own axis to give us night and day while revolvin ...
... The fourth quantum number has no letter to represent it, but instead has two possible values. It has a +1/2 or -1/2 spin value and indicates the fundamental spin states of an electron on its own axis within an orbital. Much like the Earth spins on its own axis to give us night and day while revolvin ...
Chem 400 Chem 150 REVIEW SHEET Amanda R
... Atoms, Molecules, Ions – fundamentals of elements o Protons, electrons and neutrons make up an atom o Atoms make up molecules, all matter is made of atoms o Protons and neutrons are in the nucleus, and electrons are buzzing outside the nucleus around the nucleus in orbitals o # of protons defines an ...
... Atoms, Molecules, Ions – fundamentals of elements o Protons, electrons and neutrons make up an atom o Atoms make up molecules, all matter is made of atoms o Protons and neutrons are in the nucleus, and electrons are buzzing outside the nucleus around the nucleus in orbitals o # of protons defines an ...
There are a total of n subshells, each specified by an
... levels are quantized much like or particle in a box. Since the energy level decreases a the square of n, these levels get closer together as n gets larger. ...
... levels are quantized much like or particle in a box. Since the energy level decreases a the square of n, these levels get closer together as n gets larger. ...
Lecture 9
... with an atomic and electronic interpretation based on the Bohr atom. We’ll also review some of the key equations of Einstein, Bohr and deBroglie that provide insight to the paradigm shifts that lead to modern quantum ...
... with an atomic and electronic interpretation based on the Bohr atom. We’ll also review some of the key equations of Einstein, Bohr and deBroglie that provide insight to the paradigm shifts that lead to modern quantum ...
Chapter 12
... In 1924 Louis de Broglie proposed that electrons behave like waves as well as particles. According to de Broglie an electron bound to a nucleus behaves like a standing wave. (The waves are described as standing, or stationary, because they do not travel along the string. Some points on the string, ...
... In 1924 Louis de Broglie proposed that electrons behave like waves as well as particles. According to de Broglie an electron bound to a nucleus behaves like a standing wave. (The waves are described as standing, or stationary, because they do not travel along the string. Some points on the string, ...
The Hydrogen Atom - Valdosta State University
... The total wave function then can be written as a product of the part we did for angular momentum and the radial part: This allows us to get the radial only equation. ...
... The total wave function then can be written as a product of the part we did for angular momentum and the radial part: This allows us to get the radial only equation. ...
4. Atomic Structure
... different; that is, they have different masses. Compounds are formed by the combination of atoms of different elements. ...
... different; that is, they have different masses. Compounds are formed by the combination of atoms of different elements. ...
Chapter 7. The Quantum-Mechanical Model of the Atom 100
... Know that electrons and photons behave in similar ways: both can act as particles and as waves. Know that photons and electrons, even when viewed as streams of particles, still display diffraction a ...
... Know that electrons and photons behave in similar ways: both can act as particles and as waves. Know that photons and electrons, even when viewed as streams of particles, still display diffraction a ...
(2 hours) This paper con - University of Southampton
... Section A carries 1/3 of the total marks for the exam paper and you should aim to spend about 40 mins on it. Section B carries 2/3 of the total marks for the exam paper and you should aim to spend about 80 mins on it. An outline marking scheme is shown in brackets to the right of each question. A Sh ...
... Section A carries 1/3 of the total marks for the exam paper and you should aim to spend about 40 mins on it. Section B carries 2/3 of the total marks for the exam paper and you should aim to spend about 80 mins on it. An outline marking scheme is shown in brackets to the right of each question. A Sh ...
Bohr model
In atomic physics, the Rutherford–Bohr model or Bohr model, introduced by Niels Bohr in 1913, depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus—similar in structure to the solar system, but with attraction provided by electrostatic forces rather than gravity. After the cubic model (1902), the plum-pudding model (1904), the Saturnian model (1904), and the Rutherford model (1911) came the Rutherford–Bohr model or just Bohr model for short (1913). The improvement to the Rutherford model is mostly a quantum physical interpretation of it. The Bohr model has been superseded, but the quantum theory remains sound.The model's key success lay in explaining the Rydberg formula for the spectral emission lines of atomic hydrogen. While the Rydberg formula had been known experimentally, it did not gain a theoretical underpinning until the Bohr model was introduced. Not only did the Bohr model explain the reason for the structure of the Rydberg formula, it also provided a justification for its empirical results in terms of fundamental physical constants.The Bohr model is a relatively primitive model of the hydrogen atom, compared to the valence shell atom. As a theory, it can be derived as a first-order approximation of the hydrogen atom using the broader and much more accurate quantum mechanics and thus may be considered to be an obsolete scientific theory. However, because of its simplicity, and its correct results for selected systems (see below for application), the Bohr model is still commonly taught to introduce students to quantum mechanics or energy level diagrams before moving on to the more accurate, but more complex, valence shell atom. A related model was originally proposed by Arthur Erich Haas in 1910, but was rejected. The quantum theory of the period between Planck's discovery of the quantum (1900) and the advent of a full-blown quantum mechanics (1925) is often referred to as the old quantum theory.