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The central atom B has less than 8 electrons in the valence shell. BF3 has a tendency to accept electron pair.
Boron trifluoride BF3 reacts with F- ion to form the BF4- ion. BF3 has only 6 electrons around the B atom, is planar, and is a Lewis acid (as it will accept electrons from an electron pair donor such as F-. BF4- is a tetrahedral ion- all four bonds are equivalent.
The Valence shell electron pair repulsion, or VSEPR is a simple technique for predicting the shape or geometry of atomic centers. The VSEPR formula is used in small molecules and molecular ions.
Chlorine atom has 17 electrons. It is readily accepting an electron from another atom to obtain its stable electron configuration (of argon). A chloride ion has 18 electrons.
Orbital and spin motion of electron
The central atom B has less than 8 electrons in the valence shell. BF3 has a tendency to accept electron pair.
The central atom B has less than 8 electrons in the valence shell. BF3 has a tendency to accept electron pair.
trigonal planar
It has a triangular planar geometry.
electron back bonding in bf3 due to vacant p orbital so stable and does not react.
NB: I have changed the question from electron donor to electron acceptor as BF3 has no electron donating properties and so it must be assumed the original question was erroneous.So NF3. Nitrogen has 8 electrons and a full shell. Each Fluorine has 8 electrons and a full shell. That's a stable, satisfied molecule. Accepting or donating electrons is thermodynamically unfavourable.BF3, however...is very electron poor. The fluorines actually donate electron density to the boron via weak pi bonding to help compensate the molecule's strong electron poverty. The boron is 2 electrons from completing it's octet (and thus becoming very stable) and so is a strong Lewis acid (lone pair acceptor). By accepting two electrons, BF3 can become electronically equivalent to NF3.
Lewis defined an acid as an electron pair acceptor. BF3 is a compound where boron does not have an octet of electrons in the outer energy level, so it can readily accept electrons.
an electron is not a property at all..
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A Lewis acid accepts an electron pair from a base. ---APEX--
a reaction between NH3 and BF3 is another example of formation of coordinate covalent bond during the reaction an electron pairs from nitrogen of Ammonia fills the partially Empty outer shell or boron present in BF3
In ionic bonding the electron rich species donates electron to the electron lacking species.in this process the electron donating species converts into cation by loosing electron and electron accepting species converts into anion by accepting electron.the ions now combine to from a ionic compound by releasing lattice energy