Atomic Theory

                          64                                                              16      

Step 2      Suppose out of the two ratios (g) and (h), (g) is the smallest ratio:

                    Cu = (g) = 1                                                O = (h) = (i)

                            (g)                                                           (g)  

                    Then the empirical formula of this metal oxide must be: CuOi

STRUCTURE OF AN ATOM

For many years atoms had been considered as indivisible. However, following the work of Rutherford, atoms are now believed to be built up of three smaller particles: protons, neutrons and electrons.

                                      Protons and neutrons