What is the main cause of chemical combination? List the assumptions of electronic theory of valancy.
Atoms of elements other than noble gas have unstable electronic configuration (outermost shell is incomplete). They can lose, gain or share electrons and are chemically active.
The tendency of atoms of various elements to acquire stable configuration of the nearest noble gasis the cause of chemical combination.
The postulates of Electronic Valence Theory are:
- The valence electrons take part in the formation of a covalent bond.
- Atoms with 8 electrons in their valence shell are most stable....