There is a reason why ice floats on water, and it is called the hydrogen bond. Whatever that is. A hydrogen bond, in this picture, is what forms when a hydrogen atom that is already stably bound into ...

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 ...

When two hydrogen atoms get close enough, the electron from each atom feels an attraction from the proton in the other atom's nucleus. This attraction pulls the atoms together. The electrons end up ...

Hydrogen bonds are at the very core of life as we know it, and now for the first time ever scientists have managed to visualize these transient molecular associations. This technique can be used to ...

DNA is one of the most intensely studied molecules, and scientists continue to uncover new layers of structural complexity. Now researchers have found direct evidence from NMR experiments that DNA ...