Hydrogen atoms are close together. The electron from each atom feels the attraction from the proton in the nucleus of the other atom. This attraction pulls the atoms together and the electrons are ...

This information can yield potentially new insights into sequence context effects on polymerase fidelity, for example ... It is conceivable that non–hydrogen-bonding pairs could be also used ...

Each atom then has a complete outer shell of electrons. The slideshow shows how a covalent bond forms between a hydrogen atom and a chlorine atom, making hydrogen chloride. A simple molecule ...