Question

Atomic models have been improved over the years. Arrange the following atomic models in the order of their chronological order.

(i) Rutherford’s atomic model 

(ii) Thomson’s atomic model 

(iii) Bohr’s atomic model 

A. (i), (ii), and (iii) 

B. (ii), (iii) and (i) 

C. (ii), (i) and (iii) 

D. (iii), (ii) and (i)

Answer 1

The irst model of atom was given by J.J Thompson in 1897, he was also the discoverer of the electron.

Ernest Rutherford was next to give his model of the atom in 1911 with the gold foil experiment. He also discovered proton. 

Neils Bohr gave his model in 1913.