How to Determine Reactiveness/Lability of a Metal

The video tutorial explores the reactivity of inorganic complexes, focusing on the role of metals and the factors influencing their reactivity. It clarifies common misconceptions about energy and kinetics, emphasizing that stability and reactivity are distinct concepts. The tutorial outlines general rules for predicting reactivity, such as the behavior of S block and F block elements, and the characteristics of D10, D3, and D6 complexes. It also discusses the reactivity trends of transition metals, highlighting the influence of electron configuration and spin states.

What is the main focus when discussing the reactivity of inorganic complexes?

• The number of ligands

• The central metal atom

• The color of the complex

• The geometry of the complex

Which of the following best describes a stable compound in thermodynamic terms?

• Slow reaction rate

• Fast reaction rate

• Low in energy

• High in energy

What does a negative Delta G indicate about a reaction?

• The reaction is thermodynamically favorable

• The reaction requires energy input

• The reaction is kinetically favorable

• The reaction is non-spontaneous

Which term describes a reaction that occurs very slowly despite being thermodynamically favorable?

• Unstable

• Inert

• Stable

• Labile

What is the term used for a substance that reacts quickly?

• Inert

• Labile

• Stable

• Unstable

Which S block elements are exceptions to being very labile?

• Sodium and Potassium

• Lithium and Sodium

• Beryllium and Magnesium

• Calcium and Potassium

What charge on F block elements generally makes them very labile?

• 4+

• 1+

• 2+

• 3+

Why are D3 and D6 low spin complexes generally inert?

• Due to high spin state

• Due to lack of symmetry

• Due to symmetry in degenerate orbitals

• Due to high energy levels

Which row transition metals are generally more inert?

• First row

• Second row

• Both second and third row

• Third row

What is a general trend for the reactivity of metals as you move down the periodic table?

• They become more labile

• They become more inert

• They become more reactive

• They become more unstable