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 ...

Elements are arranged in the periodic table in order of increasing atomic number. For example hydrogen has the atomic number of one, helium two, lithium three etc. The first energy level (the one ...