Come possono attrarsi le molecole Apolari?
Le forze che tengono unite tra loro le molecole (forze intermolecolari) sono di natu- ra elettrica e sono fondamentalmente di due tipi: forze di attrazione dipolo-dipolo (tra molecole polari) e forze di dispersione di London (tra molecole apolari).
Quali interazioni mantengono Unite le molecole dello iodio allo stato solido?
Lo iodio forma sia legami ionici (ione ioduro I-) sia legami covalenti; in quest’ultimo caso, data la presenza nella sua configurazione elettronica degli orbitali 5d non occupati, ha la possibilità di formare più di un legame covalente.
What is a trigonal bipyramidal molecule?
A bipyramid consists of two pyramids (three-dimensional triangles) that share a base. The term trigonal tells us that the overall shape is three-sided, like a triangle. Putting the two terms together, we can see that a trigonal bipyramidal molecule has a three-sided shape with each side being a bipyramid.
How many lone electron pairs are there in trigonal bipyramidal atoms?
Using a strict definition of trigonal bipyramidal, there is a central atom bonded to five surrounding atoms and no lone electron pairs. However, some definitions allow for lone electron pairs.
What is the difference between trigonal planar and trigonal pyramidal?
In Trigonal planar, there is only bond-bond repulsion. Trigonal pyramidal is a molecular shape that results when there are three bonds and one lone pair on the central atom in the molecule.
Is NH3 trigonal planar or trigonal pyramidal?
In Trigonal planar, there is only bond-bond repulsion. Trigonal pyramidal is a molecular shape that results when there are three bonds and one lone pair on the central atom in the molecule. In organic chemistry, molecules which have a Trigonal pyramidal geometry are sometimes described as sp3. Ammonia (NH 3) is a Trigonal pyramidal molecule.