Atomic Structure Set 6

Results

#1. The charge on the proton is

+ 1.602 x 10–19 c

zero

– 1.602 x 1019 c

1.602 x 10–19 c

#2. The charge on the neutron is

1.602 x 10–19 c

zero

– 1.602 x 10–19 c

+ 1.602 x 10–19 c

#3. The calculated e/m value of electron is

1.602 x 1019 c kg–1

1.7588 x 10–11 c kg–1

1.7588 x 10–13 c kg–1

1.759 x 109 c kg

#4. The mass of proton is

9.11 x 10–31 kg

1.676 x 10–27 kg

1.60 x 10–19 kg

1.675 x 10–27 kg

#5. The mass of neutron is

1.675 x 10–27 kg

1.675 x 10–25 kg

9.11 x 10–31 kg

1.60 x 10–19 kg

#6. The charge on electron was determined by

J.J. Thomson

Millikan

Rutherford

Bohr

#7. Alpha particles are identical to

hydrogen atoms

helium atoms

helium nuclei

fast moving electrons

#8. Bombardment of Beryllium with alpha particles generates

proton

neutron

electron

positron

#9. The colour of the glow produced in the discharge tube depends upon

gas

electrodes

composition of gas

pressure

#10. When the pressure of the gas in discharge tube is reduced, which of the following becomes more prominent

gas glows

gas ionizes

a discharge takes place

gas conducts electricity

Finish