Chapter 19, Problem 19.21SP

Interpretation Introduction

Interpretation:

The given elements in order of increasing ionization energy has to be arranged.

Concept introduction:

Periodic properties

• Ionization energy increases in a period from left to right because the atomic size decreases and nuclear charge increases from going left to right in a period.
• Ionization energy decrease in a group from top to bottom because the atomic size increases.
• Electronegativity increases in a period from left to right because the atomic size decreases and nuclear charge increases from going left to right in a period.