covalent structure मीनिंग इन हिंदी

उदाहरण वाक्य

1. In still other cases, the crystallographer may detect that the covalent structure deduced for the molecule was incorrect, or changed.
2. What is in most respects a purely covalent structure can support metallic delocalization of electrons; metallic carbon nanotubes are one example.
3. Because nucleic acids are normally linear ( unbranched ) polymers, specifying the sequence is equivalent to defining the covalent structure of the entire molecule.
4. Diamondoid structures and other stiff covalent structures, if achieved, would have a wide range of possible applications, going far beyond current MEMS technology.
5. In 1992, Drexler published " Nanosystems : Molecular Machinery, Manufacturing, and Computation ", a detailed proposal for synthesizing stiff covalent structures using a table-top factory.
6. For example, in the hydrogen molecule, classic valence bond theory uses two 1s atomic orbitals ( a and b ) on the two hydrogen atoms respectively and then constructs a covalent structure :-
7. So I assume that the " intra " molecular case you refer to would just be an " intermolecular " bond between two atoms that happen to be far apart in the basic covalent structure of the same molecule ( contributing, e . g . to protein folding ).
8. Thus, rather than having the diamond-cubic covalent structure, lead forms metallic bonds, in which only the p-electrons are delocalized and shared between the Pb 2 + ions, resulting in a face-centered cubic structure like those of the similarly-sized divalent calcium and strontium.
9. In contrast, ?-tin ( nonmetallic form, or gray tin ), which is stable below, is brittle . ?-tin has a diamond cubic crystal structure, similar to diamond, silicon or germanium . ?-tin has no metallic properties at all because its atoms form a covalent structure in which electrons cannot move freely.