Chapter 9, Problem 9C.1AE

(i)

Interpretation Introduction

Interpretation:

Electronic configuration and bond order of lithium molecule ${\text{Li}}_{\text{2}}$ has to be predicted.

Concept introduction:

Electronic configuration represents the arrangement of electrons in an atom or a molecule.  It is helpful in describing the chemical bonds that holds the atoms together.

Bond order is the number of chemical bond between a pair of atoms.  Bond order indicates the stability of a bond.  Higher the bond order, more stable will be the molecule.  .

(ii)

Interpretation Introduction

Interpretation:

Electronic configuration and bond order of Beryllium molecule ${\text{Be}}_{\text{2}}$ has to be predicted.

Concept introduction:

Electronic configuration represents the arrangement of electrons in an atom or a molecule.  It is helpful in describing the chemical bonds that holds the atoms together.

Bond order is the number of chemical bond between a pair of atoms.  Bond order indicates the stability of a bond.  Higher the bond order, more stable will be the molecule.

(iii)

Interpretation Introduction

Interpretation:

Electronic configuration and bond order of ${\text{C}}_{\text{2}}$ has to bepredicted.

Concept introduction:

Electronic configuration represents the arrangement of electrons in an atom or a molecule.  It is helpful in describing the chemical bonds that holds the atoms together.

Bond order is the number of chemical bond between a pair of atoms.  Bond order indicates the stability of a bond.  Higher the bond order, more stable will be the molecule.