'Electron electron repulsion' presentation slideshows

Chapter 3 STRUCTURE AND PROPERTIES OF MOLECULES

Chapter 3 STRUCTURE AND PROPERTIES OF MOLECULES. The molecule is a set of atoms that are in strong chemical connection to one another building a new substance. T hree types of the strong interactions exist between atoms :. Several individual atoms build the system. Each of them

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Instructor: Prof. Duncan Wardrop Time/Day: T, 4:30-8:15 p.m. September 9, 2010

Welcome to CHEM 494. Instructor: Prof. Duncan Wardrop Time/Day: T, 4:30-8:15 p.m. September 9, 2010. Course Website. http://www.chem.uic.edu/chem494. Syllabus Course Policies Other handouts Announcements (Course News) Course Calendar. Keys to Success.

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Theoretical Chemistry Molecular Orbital (MO) Calculations

"Everything You Always Wanted to Know about Computational Chemistry, But Were Afraid Would Be Answered by 27 Pages of Integrals in a Nomenclature That You've Never Seen Before." or

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Periodic Trends

Periodic Trends. Elemental Properties and Patterns. The Periodic Law. Dimitri Mendeleev was the first scientist to publish an organized periodic table of the known elements.

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Atomic Structure and Atomic Spectra (CH 13)

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ELECTRON CONFIGURATION AND CHEMICAL PERIODICITY

ELECTRON CONFIGURATION AND CHEMICAL PERIODICITY. In previous chapter we learned a new understanding of matter and energy which in turn led to the quantum mechanical model of the atom

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Opposites attract

Opposites attract. attract. repel. In a many-electron atom, each electron feels both the attraction to the protons in the nucleus and the repulsion from other electrons. Silberberg, M. 2010. Principles of General Chemistry. 2 nd ed. New York: McGraw-Hill. Effective nuclear charge.

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Shells and Subshells

3s. 3s. 3s. 3p. 3p. 3p. 3d. 3d. 3d. n=3. n=3. n=3. Shells and Subshells. The orbitals in an atom are arranged in shells and subshells . Shell : all orbitals with the same value of n Subshell : all orbitals with the same value of both n and l. orbital. n=3. 3s. 3p. 3d.

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SIDDANNA MARPALLE

SIDDANNA MARPALLE. Govt. Neelambika PU College Basavakalyan Dist : Bidar. Q: 1. The lowest first ionisation energy would be associated with which of the following structures? a] 1s 2 2s 2 2p 6 3s 1 b] 1s 2 2s 2 2p 5 c] 1s 2 2s 2 2p 6 d] 1s 2 2s 2 2p 6 3s 2 3p 2.

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Lewis Structure

Lewis Structure. Localized Electron Bonding Model. A molecule is composed of atoms that are bound together by sharing electron pairs. A bonding pair is of which two electrons are localized between two adjacent nuclei. A lone pair is that the electron pair is

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Electron Correlation Methods

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Electron Correlation Methods

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Electron Correlation Methods

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Melting Point and Boiling Point

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Electron Affinity

Electron Affinity. The energy of the process in which an electron is acquired by the in the gas phase. Usually expressed in. atom. kJ/mol. Definition. As you go down a column, the electron affinity becomes less negative (less energy).

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