Question

With reference to Rutherford’s Atomic Model, complete the following statements:
a) Protons and neutrons of an atom are concentrated in its _________.
b) Atom has a very _________ nucleus at the _________.
c) Entire mass of an atom is due to the mass of _________.
d) The Nucleus is surrounded by _________ which are equal to the number of
_________and revolve around it.
e) The nucleus is positively charged as it _________ the ________ charged particles.

TNSCERT Class 9 General Science Ch4 Atomic Structure

Answer 1

a nucleus
b dense center
c proton and neutron /nucleus
d orbits electrons
e contains same no.of

Answer 2

1. nucleus
2. dense, center
3. proton and neutron
4.orbits and orbitals, electrons
5. contains, same no.of charged particles (protons and electrons)