Density functional theory of atoms and molecules pdf download

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density functional theory of atoms and molecules pdf download

Density functional theory of atoms and molecules

In chemistry and physics , atomic theory is a scientific theory of the nature of matter , which states that matter is composed of discrete units called atoms. It began as a philosophical concept in ancient Greece and entered the scientific mainstream in the early 19th century when discoveries in the field of chemistry showed that matter did indeed behave as if it were made up of atoms. The word atom comes from the Ancient Greek adjective atomos , meaning "indivisible". Around the turn of the 20th century, through various experiments with electromagnetism and radioactivity , physicists discovered that the so-called "uncuttable atom" was actually a conglomerate of various subatomic particles chiefly, electrons , protons and neutrons which can exist separately from each other. In fact, in certain extreme environments, such as neutron stars , extreme temperature and pressure prevents atoms from existing at all.
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Introduction to the atom - Chemistry of life - Biology - Khan Academy

Density Functional Theory of Atoms and Molecules

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Skip to search form Skip to main content. Becke and Robert G. Becke , Robert G. Parr Published DOI: Having been widely used for over 30 years by physicists working on the electronic structure of solids, surfaces, defects, etc. The present article is directed at the chemical community.

2 COMMENTS

  1. Wyatt d. B. says:

    Density functional theory and Bader's atoms-in-molecules theory share the same primary ingredient: the electron density, which is the fundamental physical observable in quantum chemistry.

  2. Amir R. says:

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