Question

Draw the molecular orbitals formed by the S-S combination of atomic orbitals also illustrate the electron densities for these orbitals and explain them

Answer 1

Answer:

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Answer 2

When these  atomic orbitals  combine, the electron density increases and the shaped formed is given below .

Explanation:

Orbital

It is a region where probability of finding the electron is maximum.

In quantum mechanics, electron configurations of atoms are described as wave functions.The orbitals can combine in two ways : Either their region adds  up or the regions get subtracted .

1. The addition of orbitals give rise to bonding orbitals and subtraction of orbitals give rise to anti-bonding orbitals .
2. The mutual overlap between the half filled "S" orbitals of two atoms is called s – s overlap and the covalent bond formed is known as sigma (s) bond.

The mutual overlap of p-p bond occurs in two ways :

If it occurs along the inter-nuclear axis --the bond formed is Sigma bond .

If it occurs side to side overlapping --the bond formed is pi  bond .