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Predicting Molecular Geometry

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Properties of Transition Metals

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Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.

Electron Configuration of Multielectron Atoms

Electron Configuration of Multielectron Atoms

The alkali metal sodium (atomic number 11) has one more electron than the neon atom. This electron must go into the lowest-energy subshell available, the 3s orbital, giving a 1s22s22p63s1 configuration. The electrons occupying the outermost shell orbital(s) (highest value of n) are called valence electrons, and those occupying the inner shell orbitals are called core electrons. Since the core electron shells correspond to noble gas electron configurations, we can abbreviate electron...

The Periodic Table

The Periodic Table

As early chemists discovered more elements, they realized that various elements could be grouped by their similar chemical behaviors. One such grouping includes lithium (Li), sodium (Na), and potassium (K). All of these elements are shiny, conduct heat and electricity well, and have similar chemical properties. A second grouping includes calcium (Ca), strontium (Sr), and barium (Ba), which also are shiny, good conductors of heat and electricity, and have chemical properties in common. However,...

Halogens

Halogens

Group 17 elements, known as halogens, are nonmetals. At room temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine a solid. Astatine is a highly unstable radioactive element, so currently, most of its properties are unknown due to its short half-life. Tennessine is a synthetic element also predicted to be in this group.

Noble Gases

Noble Gases

The elements in group 18 are noble gases (helium, neon, argon, krypton, xenon, and radon). They earned the name “noble” because they were assumed to be nonreactive since they have filled valence shells. In 1962, Dr. Neil Bartlett at the University of British Columbia proved this assumption to be false.

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Correction: Tellurium: a maverick among the chalcogens.

Tristram Chivers¹, Risto S Laitinen²

¹Department of Chemistry, University of Calgary, Calgary, AB T2N 1N4, Canada. chivers@ucalgary.ca.

Chemical Society Reviews

|February 3, 2021

Summary

This correction clarifies details in the original review of tellurium, a unique chalcogen element. It ensures accurate information on tellurium's distinct chemical properties and applications.

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Area of Science:

Inorganic Chemistry
Materials Science
Chemical Reviews

Context:

This section provides a correction to the review article 'Tellurium: a maverick among the chalcogens'.
The original article was published in Chemical Reviews in 2015.
The correction addresses specific details within the comprehensive review of tellurium's chemistry.

Purpose:

To rectify inaccuracies and provide updated information regarding tellurium.
To ensure the scientific record is precise and reliable for researchers.
To maintain the integrity of the scientific literature concerning chalcogen chemistry.

Summary:

The correction pertains to specific factual or interpretative points made in the original review.
It aims to enhance the clarity and correctness of the presented data on tellurium.
Key aspects of tellurium's unique properties as a chalcogen are re-examined.

Impact:

Ensures researchers have access to the most accurate information on tellurium chemistry.
Supports the ongoing study of tellurium in various scientific fields.
Upholds the standards of scientific accuracy in peer-reviewed publications.