In 1923, the year C&EN was born, Gilbert N. Lewis of the University of California, Berkeley, published a book titled “Valence and the Structure of Atoms and Molecules.” In the text, Lewis laid out the ...

Try these interactive flashcards based on GCSE chemistry past papers. By working your way through the flashcards created by experts, you can prepare for your chemistry exams and make your revision ...

Congratulations on “Chemical Connections,” which summarizes the peculiar history of our understanding of the nature of the chemical bond (C&EN, Sept. 9, page 28). I agree with most of the article, ...

Ionic compounds close ionic compoundAn ionic compound occurs when a negative ion (an atom that has gained an electron) joins with a positive ion (an atom that has lost an electron). form a regular ...

One of the key challenges in chemistry is to break and form bonds selectively in complex organic molecules that possess a range of different functional groups. To do this at the single-molecule level ...

The chapter ‘Chemical Bonding’ is a very important part of Chemistry in the syllabus of UPSEE/UPTU entrance examination 2018. About 2-3 questions have always been asked from this chapter in the ...

It's like the hydrogen bonds found in water, but way stronger. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists have recently ...

Benzene's structure can be clearly understood through its molecular arrangement. A benzene molecule is composed of six carbon atoms arranged in a hexagonal ring, with each carbon atom bonded to one ...