'Nuclear attraction' presentation slideshows

Basic Physics of Nuclear Reactors

Basic Physics of Nuclear Reactors. Prof. Paddy Regan, Dept. of Physics University of Surrey Guildford, UK. Feb, 2014. Several components are important for a controlled nuclear reactor: Fissionable fuel Moderator to slow down neutrons

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Certain elements radiate particles and turn into other elements.

Certain elements radiate particles and turn into other elements.

1.72k views • 142 slides

Lecture 2

Lecture 2. Shielding and effective nuclear charge Z* In polyelectronic atoms, each electron feels the attraction of the nucleus and the repulsion of the other electrons (both n and l must be taken into account) Each electron acts as a shield

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Chapter 10 Chemical Bonding

Chapter 10 Chemical Bonding. Tro, 2 nd ed. Metals are found to the left of the metalloids. Nonmetals are found to the right of the metalloids. LEWIS STRUCTURES OF ATOMS. Metals form cations and nonmetals form anions to attain a stable valence electron structure.

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Atomic Structure and Periodicity

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Catalyst 9 /6/ 13

Catalyst 9 /6/ 13. On your Catalyst Sheet, please answer the following questions: 1 . What happens to electronegativity (EN) or ionization energy (IE) as you go across a period? 2. Sort from lowest to highest IE: Ba, Be, Ca 3. Sort from highest to lowest EN: P, Ge ,O. Announcement #1.

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Periodic Trends

Periodic Trends. Atomic Radius. Definition: Half of the distance between nuclei in covalently bonded diatomic molecule . Radius decreases across a period Increased effective nuclear charge due to decreased shielding Radius increases down a group

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The energy of Slater-determinants

The energy of Slater-determinants. one-electron terms:. two-electron terms:. The energy of Slater-determinants (continued). He ground state:. An example: The He atom. The energy of Slater-determinants (continued). The energy of Slater-determinants (continued). An example: The He atom.

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