Structure of The Atom

Structure of the atom Worksheet-1

1. What is the nature of the rays travelling from cathode to the anode in the discharge tube?

A. The rays consist of negatively charged particles

B. The rays consist of positively charged particles

C. The rays consist of neutral particles

2. Do anode rays also originate from the anode?

A. Yes, they originate from anode

B. No, they originate from the gas filled in the discharge tube

C. They can be originated either from anode or cathode

Structure of the atom Worksheet-2

11. The nucleus of an atom consists of ______.

A. Protons                                      B. Electrons and neutrons

C. Protons and neutrons             D. Neutrons

12. Alpha particles are _____ particles.

A. Negatively charged                 B. Positively charged

C. Neutral                                     

Structure of the atom Worksheet-3

1. Rutherford's alpha-particle scattering experiment was responsible for the discovery of

A. Atomic Nucleus                       B. Electron

C. Proton                                        D. Neutron

2. Isotopes of element have :

A. the same physical properties

B. different chemical properties

C. different number of neutrons