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Effective Atomic Number Rule in Organometallic Chemistry

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Effective Atomic Number Rule in Organometallic Chemistry

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Questions and Answers

What is the effective atomic number rule related to?

Lanthanide and actinide elements

Metals with a fully filled d-subshell

Transition metals in the d-block

Main group elements with 18 electrons in their outermost energy level (correct)

Which of the following statements is true for complexes that obey the effective atomic number rule?

They can be either high- or low-spin complexes

They are always high-spin complexes

They are always low-spin complexes (correct)

They are always diamagnetic

What is the consequence of achieving the effective atomic number in a complex?

No significant effect on reactivity

Formation of a dioxygen complex

Decreased reactivity of the metal center (correct)

Increased reactivity of the metal center

Which of the following complexes is likely to obey the effective atomic number rule?

<p>[Ni(CO)4]</p> Signup and view all the answers

What is the significance of the effective atomic number rule in organometallic chemistry?

<p>It helps identify stable and inert complexes</p> Signup and view all the answers

Study Notes

Effective Atomic Number Rule

The effective atomic number rule is related to the bonding patterns in metal complexes, particularly in organometallic chemistry.

Characteristics of Complexes

Complexes that obey the effective atomic number rule typically have a noble gas configuration, which means they achieve a full outer energy level.

Consequences of Achieving the Effective Atomic Number

The consequence of achieving the effective atomic number in a complex is that the metal center becomes more stable and less reactive.

Examples of Complexes

Complexes that are likely to obey the effective atomic number rule are those with a metal center having a coordination number of 2, 4, or 6, such as Cr(CO)6 or Fe(CO)5.

Significance in Organometallic Chemistry

The effective atomic number rule is significant in organometallic chemistry because it helps predict the stability and reactivity of metal complexes, which is crucial in understanding their chemical behavior and designing new reactions.

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Description

This quiz tests your knowledge of the effective atomic number rule, its significance, and its applications in organometallic chemistry. You'll learn about the complexes that obey this rule and their characteristics.