Chapter 10, Problem 10.81P

Interpretation Introduction

Interpretation:

Two unstable molecules from the given molecules are to be identified

Concept introduction:

The octet rule is defined that every element shares an octet (8 electrons) in their outermost electron shell to form compounds. In other words, The element that obeys the octet rule must have surrounded by eight electrons. If an atom has less than eight electrons, it is said to be electron deficient and if an atom has more than eight electrons around it, it is said to be the atom has an expanded octet.

There are three important exceptions of the octet rule:

(1) A molecule with electron-deficient atoms.

(2) A molecule with the odd-electron atoms.

(3) An atom with expanded valence shells.