Which of the following is not correct about the Rutherford’s model of an atom?

A. The mass of an atom is concentrated around the nucleus
B. The nucleus of an atom is positively charged
C. The nucleus is surrounded by the electron cloud
D. The model is applicable to atoms with only one electron in the outer shell
E. The diameter of the nucleus is 10^−15m

Correct Answer:

Option D – The model is applicable to atoms with only one electron in the outer shell