Chapter 22, Problem 22.8QP

Interpretation Introduction

Interpretation:

The structure of Copper (II) sulfate pentahydrate has to be described.  The color change that occurs upon heating Copper (II) sulfate has to be described.  The reason for color change has to be outlined.

Concept Introduction:

In the periodic classification of elements, elements are classified into s-block elements, p-block elements, d-block elements and f-block elements.  The d-block elements (group $3-12$) are referred to as transition elements.

The characteristics that make transition elements unique are –

• All of the transition elements are metals.
• Transition elements have higher melting points.
• Transition elements exhibit more variable oxidation state in its compounds.
• Transition elements form more colored compounds and paramagnetic compounds.
• Many of transition elements form complex compounds, also known as co-ordination compounds.
• Transition elements have higher densities.