Democritus Atomic Theory
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Atomic theory - In physics, atomic theory is a theory of the nature of matter. It states that all matter is composed of atoms.
Atomic (order theory) - An atom in a poset P with least element 0, is an element that is minimal among all elements that are unequal to 0.
Valence bond theory - The valence bond theory considers that the overlapping atomic orbitals of the participating atoms form a chemical bond. Due to the overlapping, it is most probable that electrons should be in the bond region.
Modern valence bond theory - Modern valence bond theory has been developed by several workers, including Gerratt, Cooper and Raimondi(1997); Li and McWeeny(2002); Song, Mo, Zhang and Wu (2005); and Shaik and Hiberty (2004). In its simplest form the overlapping atomic orbitals are replaced by orbitals which are expanded as linear combinations of the atom-based basis functions.
democritusatomictheory
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