Question

state three features of the nuclear model of an atom put forward by rutherford

Answer 1

The three features of Rutherford's model are:-)
one ray from 1200 ray deflect back on the same path.
there is a centre of positively charged particles in atom called nucleus.
all the rays deflect in upward and downward direction in small and big angles.
electrons move around the nucleus.
in atom most of the space is vacant.

Answer 2

(i) There is a positively charged centre in an atom called the nucleus. Nearly, all the mass of an atom resides in the nucleus.
(ii) The electrons revolve around the nucleus in well defined orbits.
(iii) The size of the nucleus is very small as compared to the size of the atom