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Choose the correct statement...

Choose the correct statement

A

The nuclear force becomes strong if the nucleus contains too many protons compared to neutrons

B

The nuclear force becomes strong if the nucleus contains too many neutrons compared to protons

C

Nuclei with atomic number less than 82 shows a tendency to disintegrate

D

The nuclear force becomes weak if the nucleus contains a large number of nucleons

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze each statement provided and determine which one is correct based on our understanding of nuclear physics. ### Step-by-Step Solution: 1. **Evaluate Statement 1**: "The nuclear force becomes strong if the nucleus contains too many protons compared to neutrons." - The nuclear force is actually stronger when there is a balance between protons and neutrons. If there are too many protons, the repulsive electromagnetic force between them can overcome the strong nuclear force, leading to instability. Therefore, this statement is **incorrect**. 2. **Evaluate Statement 2**: "Nuclei with atomic number less than 82 have a tendency to disintegrate." - Generally, it is the heavier nuclei (those with atomic numbers greater than 82, such as Uranium and Plutonium) that are more prone to disintegration or radioactive decay. Nuclei with atomic numbers less than 82 are usually stable. Thus, this statement is also **incorrect**. 3. **Evaluate Statement 3**: "The nuclear force becomes strong if the nucleus contains too many neutrons compared to protons." - While having more neutrons can help stabilize a nucleus, there is a limit. If there are too many neutrons compared to protons, the nucleus can also become unstable. Therefore, this statement is **incorrect**. 4. **Evaluate Statement 4**: "Nuclei with atomic number greater than 82 show a tendency to disintegrate." - This statement is correct. Nuclei with atomic numbers greater than 82 tend to be unstable and are more likely to undergo radioactive decay. They often disintegrate due to the imbalance of forces within the nucleus. ### Conclusion: The correct statement is **Statement 4**: "Nuclei with atomic number greater than 82 show a tendency to disintegrate."
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AAKASH INSTITUTE-NUCLEI-ASSIGNMENT (SECTION-B)
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  2. Two radioactive samples of different elements (half-lives t1 and t2 re...

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  3. Choose the correct statement

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  4. N atoms of a radioactive element emit n alpha particles per second. Th...

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  5. 90% of the active nuclei present in a radioactive sample are found to ...

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  6. A sample of radioactive element has a mass of 10 g at an instant t=0. ...

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  7. During mean life of a radioactive element, the fraction that disintegr...

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  8. An element A decays into element C by a two-step process : A rarr B ...

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  9. After three half lives, the percentage of fraction of amount a).35 b)1...

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  10. The radioactivity of a certain radioactive element drops to 1//64 of i...

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  11. The half-life of a radioactive substance against alpha-decay is 1.2 xx...

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  12. The value of binding energy per nucleon is

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  13. In the nuclear fusion reaction (1)^(2)H + (1)^(3)H rarr (2)^(4)He + ...

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  14. A nucleus ""^(220)X at rest decays emitting an alpha-particle . If ene...

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  15. Radioactive nuclei P and Q disintegrate into R with half lives 1 month...

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  16. A radioactive element X emits six alpha-particles and four beta-partic...

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  17. In nature, ratio of isotopes Boron, ""5B^(10) and ""5B^(11) , is (give...

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  18. Q -value of the decay ""(11)^(22)Na to ""(10)^(22)Ne+e^(+)+nu is

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  19. Which of the alternatives gives correct match of columni with column-I...

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  20. Correct increasing order of penetrating powers of alpha,beta particles...

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