Which atom can have more than eight valence electrons when it is forming covalent bonds ?

Statement I : In sulphur hexafluoride, the central atom has more than eight valence electrons. Statement II: The central atom can accommodate additional electron pairs by using outer vacant d orbitals.

Ionic bond is defined as the electrostatic force of attraction holding the oppositely charged ions. Ionic compounds are mostly crystalline solids having high melting and boiling points, electrical conductivity in molten state, solubility in water etc., Covalent bond is defined as the force which binds atoms of same or different elements by mutual sharing of electrons in a covalent bond. Covalent compounds are solids, liquids or gases. They are low melting and boiling point compounds. They are more soluble in non polar solvents. The valence electrons not involved in fonnation of covalent bonds are called

Assertion : Diborane is electron deficient. Reason: There are no enough valence electrons to form the expected number of covalent bonds.

The Ge behaves as semiconductor even though all electrons in the valence band form covalent bonds ? It is caused by the large width of

According to valence bond theory, sharing of electrons during the formation of covalent bond results from the ____________of orbitals from two reacting atoms

Carbon forms covalent bonds by sharing its four valence electrons with four univalent atoms , e.g, hydrogen . After the formation of four bonds, carbon attains the electronic configuration of