Deuterium

Hydrogen isotopeAtoms of the same atomic number (i.e. the same chemical elem... with a nucleusPositively charged nucleus of an atom. Its diameter amounts ... containing a neutronUncharged elementary particle with a mass of 1.67492716 ·10... and a protonElementary particle with a positive electrical elementary ch... resulting in double the weight of the nucleusPositively charged nucleus of an atom. Its diameter amounts ... of normal hydrogen, which contains only one protonElementary particle with a positive electrical elementary ch.... It is therefore known as “heavy“ hydrogen. Deuterium occurs naturally. There is one deuterium atomSmallest particle of an element which cannot be chemically d... per 6,500 “normal“ hydrogen atoms. (See ‘Heavy water’)