Radioactivity and Nuclear Energy MCQ Test – 2

α-particle is similar to-

A possible material for use in nuclear reactor as fuel is-

At. Wt. of  Th-232 and its atomic number is 90. The number of α and β-particle which will be lost so that an isotope of Pb-208 and At number 82 is produced to-

₁H² + ₁H² → ₂He³ + ₀n¹ this reaction is called-

An α–particle is given out by ₉₀X²³⁸. The new species Y should be

The half life period of ₉₂U²³⁸ is 4.5 × 10⁹ years. After how many years is amount will be half of the original amount

The half life of a first order reaction is 10 minutes. The time required for concentration of the reactant to change from 0.08 to 0.01M is-

The huge amount of energy which is released during atomic fission is due to-

Radioactive disintegration differs from a chemical change in being-

The radioactive nucleus ₇N¹³ decays to ₆C¹³ through the emission of

An element A emits β particles and forms B, A and B are-

On successive radioactive decays ₉₂U²³⁸ is converted to ₈₂Pb²⁰⁶. From this the total number of α and β particles emitted would be-

Radioactive is due to

Heavy water is used in atomic reactor as-

The reactivity of radio isotopes changes with

What is the symbol for the nucleus remaining after ₂₀Ca⁴² undergoes β emission-

A radioactive element has a half life of one day, after three days the amount of the element left will be-

Which of the following does not characteristic X-ray

A radioactive sample has a half life of 1500 years. A sealed tube containing one gm of the sample will contain how much of the sample after 3000 years-

In the nuclear reaction, ₇N¹⁴ + ₂He⁴ à _qX^p + ₁H¹, the nucleus X is:

The radioactive decay o ₃₅X⁸⁸ by a beta emission produces an unstable nucleus which spontaneously emits a neutron. The final product is:

₁₃Al²⁷ is a stable isotope, ₁₃Al²⁹ is expected to disintegrate by:

Decrease in atomic number is observed during

The number of neutrons accompanying the formations of ₃₄X¹³⁹ and ₃₈Sr⁹⁴ from the absorption of a slow neutron by ₉₂U²³⁵ followed by nuclear fission is:

²³Na is the most stable isotope of Na. Find out the process by which ₁₁²⁴Na can undergo radioactive decay