sizes of atomic orbitals

Combination of 2s atomic orbitals - Like 1s-orbitals, 2s-orbitals combine by addition and subtraction of overlappingwavefunctions to form bonding and antibonding molecular orbitals. These are labeled as s 2s,and s *2s. These molecular orbitalsh..

As the size of the atom decreases it has greater tendency to attract the bonding electrons towards itself. Therefore smaller atoms have higher electronegativity values than the larger one..

The bond length increases with increase in the size of the atom. From the above values it is clear that the bond lengths for a given family increase with increase in atomic number. For example, C-C < Si-Si < Ge-Ge This is because with the increase in size..

Electrons cannot exist at a particular point or in a well-defined orbit (path), according to the above new approach called wave mechanics. This led to the concept of 'most probable regions'. We talk about 'certain regions in space around the nucleus called atomic orbitalsh..

The distance from the centre of the nucleus to the outermost shell of an atom is called the atomic radius of that atom..

The distance from the centre of the nucleus to the outermost shell of an atom is called the atomic radius of that atom (Fig. 2.1..

Like 1s-orbitals, 2s-orbitals combine by addition and subtraction of overlappingwavefunctions to form bonding and antibonding molecular orbitals. These are labeled as s 2s,and s *2s. These molecular orbitals have exactly the same shapes as s 1s and ..

The size of the electronegative atom should be small. The smaller the size of electronegative atom, the greater is the attraction for the bonded electron pair. This causes greater polarity in the bond between H and the electro- negative atom, resul..

Differences between Atomic and Molecular Orbitals - The important differences between atomic and molecular orbitals a..

The combining atomic orbitals should not differ much in energies. For e.g., in case of homonuclear diatomic molecules of the type A 2 ' 2s-orbital of one atom can combine with 2s-orbital of another atom but 1s-orbital of on..