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Perpendicular Paramagnetic Bond
A perpendicular paramagnetic bond is a type of chemical bond (in contrast to Covalent bond, covalent or Ionic bonding, ionic bonds) that does not exist under normal, atmospheric conditions. Such a phenomenon was first hypothesized through simulation to exist in the atmospheres of white dwarf stars whose magnetic fields, on the order of 105 Tesla (unit), teslas, could allow such interactions to exist. In a very strong magnetic field, excited electrons in molecules may be stabilized, causing these molecules to abandon their original orientations parallel to the magnetic field and instead lie perpendicular to it. Normally, at such intense temperatures as those near a white dwarf, more common molecular bonds cannot form and existing ones decompose. References {{astronomy stub Astrophysics Chemical bonding White dwarfs Hypothetical processes Exotic matter Magnetism in astronomy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Covalent Bond
A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs. The stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding. For many molecules, the sharing of electrons allows each atom to attain the equivalent of a full valence shell, corresponding to a stable electronic configuration. In organic chemistry, covalent bonding is much more common than ionic bonding. Covalent bonding also includes many kinds of interactions, including σ-bonding, π-bonding, metal-to-metal bonding, agostic interactions, bent bonds, three-center two-electron bonds and three-center four-electron bonds. The term ''covalent bond'' dates from 1939. The prefix ''co-'' means ''jointly, associated in action, partnered to a lesser degree, '' etc.; thus a "co-valent bond", in essence, means that the atoms share " valence", such a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
