The slight drop below the generally increasing trend in the value of IE 1 for the elements in groups 3 A ( 13 ) and 6A ( 16 ) is to be explained. Concept introduction: The ionization energy is the amount of energy required to remove the most loosely bound valence electrons from an isolated neutral gaseous atom. It is represented by IE. Its value varies with the ease of removal of the outermost valence electron. If the outermost electron is removed very easily then the value of ionization energy is very small. If the electron is removed with quite difficulty then the value of ionization energy will be very high. When the first electron is removed from a neutral, isolated gaseous atom then the ionization energy is known as the first ionization energy ( IE 1 ) . Similarly when the second electron is removed from the positively charged cation the ionization energy is called the second ionization energy ( IE 2 ) and so on.

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Chapter 8, Problem 8.49P

Interpretation Introduction

Interpretation:

The slight drop below the generally increasing trend in the value of IE1 for the elements in groups 3A(13) and 6A(16) is to be explained.

Concept introduction:

The ionization energy is the amount of energy required to remove the most loosely bound valence electrons from an isolated neutral gaseous atom. It is represented by IE.

Its value varies with the ease of removal of the outermost valence electron. If the outermost electron is removed very easily then the value of ionization energy is very small. If the electron is removed with quite difficulty then the value of ionization energy will be very high.

When the first electron is removed from a neutral, isolated gaseous atom then the ionization energy is known as the first ionization energy (IE1). Similarly when the second electron is removed from the positively charged cation the ionization energy is called the second ionization energy (IE2) and so on.

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