chemia simr01 en - Leszek Niedzicki
... +i• If positive charge is constant (nucleus) substracting electrons (anion forming) decreases ionic radius (positive charge attraction is constant) – electrons number is decreasing – they repel each other less – so they can fit in a smaller volume. Adding electrons (cation forming) increases ionic r ...
... +i• If positive charge is constant (nucleus) substracting electrons (anion forming) decreases ionic radius (positive charge attraction is constant) – electrons number is decreasing – they repel each other less – so they can fit in a smaller volume. Adding electrons (cation forming) increases ionic r ...
Physics 228, Lecture 11 Monday, February 28, 2005 Bohr Model
... the fundamental understanding of how coordinate systems were related, challenging Newtonian mechanics. But in that case it was pretty clear what was happening — the relativistic expressions, for example for momentum, reduced to the Newtonian expressions if we considered the formal limit c → ∞, or mo ...
... the fundamental understanding of how coordinate systems were related, challenging Newtonian mechanics. But in that case it was pretty clear what was happening — the relativistic expressions, for example for momentum, reduced to the Newtonian expressions if we considered the formal limit c → ∞, or mo ...
Intro to Chapter 5 Development of the Periodic Table
... Development of the Periodic Table Light and Electromagnetic Spectrum Electromagnetic Radiation and Atomic Spectra Particlelike Properties of Electromagnetic Radiation: The Planck Equation Wavelike Properties of Matter: The de Broglie Equation Quantum Mechanics and the Heisenberg Uncertainty Principl ...
... Development of the Periodic Table Light and Electromagnetic Spectrum Electromagnetic Radiation and Atomic Spectra Particlelike Properties of Electromagnetic Radiation: The Planck Equation Wavelike Properties of Matter: The de Broglie Equation Quantum Mechanics and the Heisenberg Uncertainty Principl ...
Document
... Atoms of the same element are identical. The atoms of anyone element are different from those of any other element Atoms of different elements can physically mix together or can chemically combine w/ one another in simple whole-number ratios to form compounds Chemical reactions occur when atoms are ...
... Atoms of the same element are identical. The atoms of anyone element are different from those of any other element Atoms of different elements can physically mix together or can chemically combine w/ one another in simple whole-number ratios to form compounds Chemical reactions occur when atoms are ...
Chapter 31 Atomic Physics
... associated energies have only discrete values, one uses integer numbers to identify each orbit and its corresponding energy. Such integer number is called a quantum number. Quantum mechanics describes the hydrogen atom in terms of four quantum numbers: (1) the principal quantum number n, which can h ...
... associated energies have only discrete values, one uses integer numbers to identify each orbit and its corresponding energy. Such integer number is called a quantum number. Quantum mechanics describes the hydrogen atom in terms of four quantum numbers: (1) the principal quantum number n, which can h ...
Atomic Structure
... • Based on quantum theory, which says matter also has properties associated with waves. • According to quantum theory, it’s impossible to know the exact position and momentum of an electron at the same time. This is known as the Uncertainty Principle. • This model of the atom uses complex shapes of ...
... • Based on quantum theory, which says matter also has properties associated with waves. • According to quantum theory, it’s impossible to know the exact position and momentum of an electron at the same time. This is known as the Uncertainty Principle. • This model of the atom uses complex shapes of ...
Molekylfysik - Leiden Univ
... the intensity of a line is a general method that can be applied to any atoms or molecules. For a hydrogenic atom, the introduction of the final and initial states, characterized by two different sets of numbers (n, l, ml), leads to the selection rules indicating which transition is allowed: ...
... the intensity of a line is a general method that can be applied to any atoms or molecules. For a hydrogenic atom, the introduction of the final and initial states, characterized by two different sets of numbers (n, l, ml), leads to the selection rules indicating which transition is allowed: ...
2.1 The Nature of Matter - Sonoma Valley High School
... neutrons and different mass. All isotopes of an element have the same chemical properties b/c their electrons are the same. ...
... neutrons and different mass. All isotopes of an element have the same chemical properties b/c their electrons are the same. ...
AP Unit 1 Test Review
... (B) Practically all the mass of an atom is contained in its nucleus. (C) Atoms contain protons, neutrons, and electrons. (D) Atoms have a positively charged nucleus surrounded by an electron cloud. (E) No two electrons in one atom can have the same four quantum numbers. 2. Use these answers for ques ...
... (B) Practically all the mass of an atom is contained in its nucleus. (C) Atoms contain protons, neutrons, and electrons. (D) Atoms have a positively charged nucleus surrounded by an electron cloud. (E) No two electrons in one atom can have the same four quantum numbers. 2. Use these answers for ques ...
CMC Chapter 5
... Section 5.2 Quantum Theory and the Atom • Compare the Bohr and quantum mechanical models of the atom. • Explain the impact of de Broglie's wave article duality and the Heisenberg uncertainty principle on the current view of electrons in atoms. • Identify the relationships among a hydrogen atom's en ...
... Section 5.2 Quantum Theory and the Atom • Compare the Bohr and quantum mechanical models of the atom. • Explain the impact of de Broglie's wave article duality and the Heisenberg uncertainty principle on the current view of electrons in atoms. • Identify the relationships among a hydrogen atom's en ...
Quiz 1 - sample quiz
... a) An electron jumps from a high energy orbital to a lower energy orbital when a photon of energy is emitted by an atom. b) The energy of light is directly proportional to its wavelength. c) The atomic emission spectrum consists of a series of discrete lines. d) The speed of light in a vacuum is con ...
... a) An electron jumps from a high energy orbital to a lower energy orbital when a photon of energy is emitted by an atom. b) The energy of light is directly proportional to its wavelength. c) The atomic emission spectrum consists of a series of discrete lines. d) The speed of light in a vacuum is con ...
Physics 120 Homework Set #1 (due Sunday
... b) Explain how Einstein’s equations for the energy and momentum of light quanta were used by De Broglie to encapsulate this duality. a) Particle-wave duality corresponds to the observation that different experiments or observations can present a particle-like behavior as well as a wave-like behavior ...
... b) Explain how Einstein’s equations for the energy and momentum of light quanta were used by De Broglie to encapsulate this duality. a) Particle-wave duality corresponds to the observation that different experiments or observations can present a particle-like behavior as well as a wave-like behavior ...
1. The primitive translation vectors of the hexagonal space lattice
... (b) Discuss the allowed and forbidden reflections, i.e. the values of S in all cases. taken as the conventional cube. Carbon atoms locate at ...
... (b) Discuss the allowed and forbidden reflections, i.e. the values of S in all cases. taken as the conventional cube. Carbon atoms locate at ...
Final Review
... an orbital. How many total nodes, radial nodes, and angular nodes are there in a particular orbital? What is the general equation for the energy eigenstates of hydrogenic atoms? When an electron undergoes a transition from an orbital to a different orbital this also means that it may undergo a chang ...
... an orbital. How many total nodes, radial nodes, and angular nodes are there in a particular orbital? What is the general equation for the energy eigenstates of hydrogenic atoms? When an electron undergoes a transition from an orbital to a different orbital this also means that it may undergo a chang ...
Molecular Orbital Theory
... distance on the right, with no interatomic interaction, to zero interatomic distance on the right, where the two nuclei become, in effect, a single nucleus. The simplest example has two H atoms on the right and a He atom on the left. ...
... distance on the right, with no interatomic interaction, to zero interatomic distance on the right, where the two nuclei become, in effect, a single nucleus. The simplest example has two H atoms on the right and a He atom on the left. ...
Atomic Emission Spectra, Electron Configuration, Periodicity
... the alkaline metals, the halogens, the noble gases, the transition metals. Take note that your book refers to these groups as 1A-8A, and 3B-7B. TRANSLATE THESE INTO GROUPS 1-18! 2. Which group numbers correspond to the representative elements, and why are they given that name? 3. Define atomic radiu ...
... the alkaline metals, the halogens, the noble gases, the transition metals. Take note that your book refers to these groups as 1A-8A, and 3B-7B. TRANSLATE THESE INTO GROUPS 1-18! 2. Which group numbers correspond to the representative elements, and why are they given that name? 3. Define atomic radiu ...
Electron Configuration
... Use the last noble gas that is located in the periodic table right before the element. Write the symbol of the noble gas in brackets. Write the remaining configuration after the brackets. Ex: Fluorine: [He] 2s2 2p5 ...
... Use the last noble gas that is located in the periodic table right before the element. Write the symbol of the noble gas in brackets. Write the remaining configuration after the brackets. Ex: Fluorine: [He] 2s2 2p5 ...
Atomic orbital
An atomic orbital is a mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom. This function can be used to calculate the probability of finding any electron of an atom in any specific region around the atom's nucleus. The term may also refer to the physical region or space where the electron can be calculated to be present, as defined by the particular mathematical form of the orbital.Each orbital in an atom is characterized by a unique set of values of the three quantum numbers n, ℓ, and m, which respectively correspond to the electron's energy, angular momentum, and an angular momentum vector component (the magnetic quantum number). Any orbital can be occupied by a maximum of two electrons, each with its own spin quantum number. The simple names s orbital, p orbital, d orbital and f orbital refer to orbitals with angular momentum quantum number ℓ = 0, 1, 2 and 3 respectively. These names, together with the value of n, are used to describe the electron configurations of atoms. They are derived from the description by early spectroscopists of certain series of alkali metal spectroscopic lines as sharp, principal, diffuse, and fundamental. Orbitals for ℓ > 3 continue alphabetically, omitting j (g, h, i, k, …).Atomic orbitals are the basic building blocks of the atomic orbital model (alternatively known as the electron cloud or wave mechanics model), a modern framework for visualizing the submicroscopic behavior of electrons in matter. In this model the electron cloud of a multi-electron atom may be seen as being built up (in approximation) in an electron configuration that is a product of simpler hydrogen-like atomic orbitals. The repeating periodicity of the blocks of 2, 6, 10, and 14 elements within sections of the periodic table arises naturally from the total number of electrons that occupy a complete set of s, p, d and f atomic orbitals, respectively.