Home
Class 12
PHYSICS
When a sample of solid lithium is placed...

When a sample of solid lithium is placed in a flask of hydrogen gas then following reaction happened `._1^1 H + ._3 Li^7 rarr ._2 He^4 + ._2He^4`. This statement is.
.

A

`True`

B

`False`

C

May be true at a particular pressure

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
(b) The given reaction is a nuclear reaction,which can take place only if a proton (a hydrogen nucleus) comes into contact with a lithium nucleus. If the hydrogen is in the atomic from, the interaction between its electron could and the electron cloud of a lithium atom keeps the two nuclei from getting close to each other. Even if isolated protons are used, they must be fired at the `Li` atom with enough kinetic energy to overcome the electric repulsion between the proton and `L i` atom.
Promotional Banner

Topper's Solved these Questions

  • NUCLEAR PHYSICS

    A2Z|Exercise Section B - Assertion Reasoning|13 Videos

  • NUCLEAR PHYSICS

    A2Z|Exercise AIPMT/NEET Questions|52 Videos

  • NUCLEAR PHYSICS

    A2Z|Exercise Radioactive Disintegration|65 Videos

  • MOCK TEST

    A2Z|Exercise Mock Test 3|44 Videos

  • SEMICONDUCTOR ELECTRONICS

    A2Z|Exercise EXERCISE|29 Videos

Similar Questions

Explore conceptually related problems

In the following reaction the value of 'X' is. ._7 N^14 + ._2 He^4 rarr X + ._1 H^1 .

Calculate the energy released in the following reaction ._3Li^6 + ._0n^1 to ._2He^4 + ._1H^3

The reaction ._(1)D^(2) + ._(1)T^(3) rarr ._(1)He^(2) + ._(0)n^(1) is an example of

The bombardment of Lithium with protons gives rise to the following reaction: ._3Li^7+._1H^1 to .2_He^4+.2_He^4+Q The atomic masses of lithium, hydrogen and helium are : 7.016u, 1.008u and 4.004u resp. Find the initial energy of each of alpha particle. Take 1a.m.u=931MeV .

Calculate the energy released in joules and MeV in the following nuclear reaction: ._(1)H^(2) + ._(1)H^(2) rarr ._(2)He^(3) + ._(0)n^(1) Assume that the masses of ._(1)H^(2) , ._(2)He^(3) , and neutron (n) , respectively, are 2.40, 3.0160, and 1.0087 in amu.

Which is the missing particle in the following nuclear reaction ? ""_(3)Li^(7) + ""_(1)H^(2) rarr ""_(3)Li^(8) + ?

Calculate the loss in mass during the change: ._(3)Li^(7) + ._(1)He^(1) rarr 2 ._(2)He^(4) + 17.25 MeV

In the nuclear raction given by ._2He^4 +._7N^(14) rarr ._1H^1 +X the nucleus X is

The equation: 4._(1)^(1) H^(+) rarr ._(2)^(4) He^(2+) + 2e + 26MeV represnets.

A2Z-NUCLEAR PHYSICS-Problems Based On Mixed Concepts
  1. The nuclide .^131 I is radioactive, with a half-life of 8.04 days. At ...

    Text Solution

    |

  2. U^238 decays into Th^234 by the emission of an a-particle. There follo...

    Text Solution

    |

  3. When a sample of solid lithium is placed in a flask of hydrogen gas th...

    Text Solution

    |

  4. Consider an initially pure M gm sample of X, an isotope that has a hal...

    Text Solution

    |

  5. At a given instant there are 25 % undecayed radioactive nuclei in a sa...

    Text Solution

    |

  6. Highly energetic electrons are bombarded on a target of an element con...

    Text Solution

    |

  7. Number of nuclei of a radioactive substance are 1000 and 900 at times ...

    Text Solution

    |

  8. Which sample contains greater number of nuclei ? a 5.00 -mu Ci sampl...

    Text Solution

    |

  9. The radioactivity of a given sample of whisky due to tritium (half lif...

    Text Solution

    |

  10. Transition between three energy energy levels in a particular atom gi...

    Text Solution

    |

  11. Samples of two radioactive nuclides, X and Y, each have equal activity...

    Text Solution

    |

  12. A stationery thorium nucleus (A=200 , Z=90) emits an alpha particle wi...

    Text Solution

    |

  13. A hydrogen-like atom emits rediationof frequency 2.7 xx 10^(15) Hz whe...

    Text Solution

    |

  14. Stationery nucleus .^(238)U decays by a emission generaring a total ki...

    Text Solution

    |

  15. The ground (Fig.) shows the number of particles Nt emitted per second ...

    Text Solution

    |

  16. The activity of a radioative element decreases to one third of the ori...

    Text Solution

    |

  17. A radioactive element A with a half-value period of 2 hours decays giv...

    Text Solution

    |

  18. The half-life period of RaB(.(82)Pb^(214)) is 26.8 min. The mass of on...

    Text Solution

    |

  19. The count rate for 10 g of radioactive material was measured at differ...

    Text Solution

    |

  20. If 10% of a radioactive material decays in 5 days, then the amount of...

    Text Solution

    |