Radioactive disintegration series

What is the Atomic number of Bismuth?

• Z=76

• Z=89

• Z=83

• Z=84

How many alpha particles are emitted during the decay of U-238 in the Uranium series

• 5

• 8

• 9

• 7

Select the elements which comes under Uranium disintegration series

(Th,Pa,Ra,Ac,Rn,Fr,Po,Pb,Np,Bi)

• Ra,Rn,Fr,Po,Pb,Th

• Pa,Ra,Th,Po

• Rn,Pb,Bi

• Both b and c

What is the end product in the Actinium Disintegration series?

• Pb-208

• Pb-206

• U-238

• Pb-207

Which is the naturally occurring heaviest element in the periodic table?

• Lawrencium

• Neptunium

• Uranium

• Einestinium

In the disintegration series of Thorium, the element Bi-212 emits both alpha and beta particles. What are the elements produced?

• Bi-212 and Pb-208

• Tl-208 and Po-212

• Both a and b

• All of these

Is Uranium used in the Thorium Disintegration series as like in Actinium series

• May be Uranium is a daughter element

• Yes, Uranium is used for decay

• Both a and b are right

• No, Uranium is not uesd

Which is the first radioactive artificial element produced by the decay of U-239?

• Pu-240

• Np-238

• Am-239

• Np-239

Choose the correct applications of radioactive Artificial transmutation

• Used to produce radioactive artificial elements

• Used in medical and defense sectors

• Both a and b are wrong

• A and b are right

The half life of Pu-239 in the decay of U-239 is______

• 2.36 days

• 2.36 minutes

• 2.36 seconds

• 2 days