Open an introductory chemistry textbook. What is a covalent bond? A covalent bond occurs when atoms share electrons in a molecule. What is a hydrogen bond? A hydrogen bond is an electrostatic ...

Last month we heard about a brand new solid form of carbon, separate to the graphite and diamond forms that we already know so well. Called Q-Carbon because of the way that it is created (carbon is ...

Everything in the world is chemistry. All materials are composed of atoms, whose positively charged nuclei are surrounded by a greater or lesser number of negatively charged electrons. 'A covalent ...

The drug ibrutinib makes a covalent bond to Bruton's tyrosine kinase, an important cancer target. Credit: RCSB PDB/Yang H. Ku Enticing atoms to share their electrons—to make a covalent bond, in other ...

The discovery of a stable single-electron covalent bond between two carbon atoms validates a century-old theory. The discovery of a stable single-electron covalent bond between two carbon atoms ...