It also tells us that chlorine has 18 neutrons (35 - 17) and, as the number of electrons and protons are equal in a neutral atom, chlorine also has 17 electrons. The relative mass of a nucleus is ...

Everyone at that time imagined the atom as a "plum pudding ... He realized that Rutherford's model wasn't quite right. By all rules of classical physics, it should be very unstable.

Researchers use atomic force microscopy to image the chemical structure of the small molecule ... if we have a charge transfer or if we exchange one atom or dissociate one atom,” explains ...