Shape of beryllium fluoride( BeF2) molecule Atomic number of Be = 4 Electronic configuration in ground state is 1s2 2s2 Electronic configuration in excited state is 1s2 2s1 2px1 one 2s orbital and one 2p orbital undergo sp hybridisation to form two half filled sp hybrid orbitals which are oriented at an angle of 180°. They overlap with the half filled orbitals of … [Read more...] about Shapes Of Molecules
Class 11
Hydrogen Bonding
Whenever a molecule contains a hydrogen atom linked to a highly electronegative atom, this atom attracts the shared pair of electrons more and so this end of the molecules becomes slightly negative while the other end become slightly positive. The negative end of one molecule attracts the positive end of the other and as a result, a weak bond is formed between them. This … [Read more...] about Hydrogen Bonding
Molecular Orbital Theory
Molecular orbital theory Features of Molecular orbital theory 1) The atomic orbitals overlap to form new orbitals called molecular orbitals. When two atomic orbitals overlap or combine, they lose their identity and form new orbitals. The new orbitals thus formed are called molecular orbitals. 2) Molecular orbitals are the energy states of a molecule in which the … [Read more...] about Molecular Orbital Theory
Resonance
In case of certain molecules, a single Lewis structure cannot explain all the properties of the molecule. The molecule is then supposed to have many structures, each of which can explain most of the properties of the molecules but none can explain all the properties of the molecule. The actual structure is in between of all these constituting structure and is called … [Read more...] about Resonance
Coordinate Bond
Certain atoms which have complete octets can donate their valence electrons which are not involved in bond formation, to other atoms, which are short of electron. These donated electrons are, therefore, lone pair of electrons and are shared by both the atoms. When in the formation of a bond, the electron pair is donated by one atom but shared by both the atoms so as to … [Read more...] about Coordinate Bond