Home
Class 12
PHYSICS
A radiactive nucleus 'A' undergoes a ser...

A radiactive nucleus `'A'` undergoes a series of decays according to the following scheme:
`Aoverset(alpha)rarrA_(1)overset(beta)rarrA_(2)overset(alpha)rarrA_(3)overset(y)rarrA_(4)`
The mass number and atomic number `A` are `180` and `72` respectively. What are these number for `A_(4)`?

Text Solution

Verified by Experts

`{:(._(72)^(180)A,._(2)^(4)He,._(70)^(176)A_(1),._(1)^(0)e,._(71)^(176)),(A_(2),._(2)^(4)He,._(69)^(172)A_(3),._(69)^(172)A_(4),):}`
`:.` The mass number of `A_(4)=69`
Promotional Banner

Topper's Solved these Questions

  • NUCLEAR PHYSICS

    RESONANCE|Exercise Advanced level solutions|16 Videos

  • NUCLEAR PHYSICS

    RESONANCE|Exercise Exercise-3 Part-II JEE (MAIN)|19 Videos

  • GRAVITATION

    RESONANCE|Exercise HIGH LEVEL PROBLEMS|16 Videos

  • REVISION DPP

    RESONANCE|Exercise All Questions|444 Videos

Similar Questions

Explore conceptually related problems

A radioactive nucleus undergoes a series of deacy according to the scheme. Aoverset(alpha)rarrA_(1)overset(beta^(-))rarrA_(2)overset(alpha)rarrA_(3)overset(gamma)rarrA_(4) If the mass number and atomic number of A are 180 and 172 respectively, what are these numbers for A_(4) .

A radioactive nucleus undergoes a series of decay according to the scheme A overset(alpha)rarr A_(1) overset(beta^(-))rarr A_(2) overset(alpha)rarr A_(3)^(172) overset(gamma)rarr A_4 .

(i) A radioactive nucleus 'A' undergoes a series of decays as given below : A overset(alpha)rarr A_(1) overset(beta)(rarr)A_(2)overset(alpha)rarrA_(3)overset(gamma)(rarr)A_(4) . The mass number of atomic number of A_(2) are 176 and 171 respectively. Determine the mass and atomic numbers of A_(4) and A. (ii) Write the basic nuclear processes underlying beta and beta^(-) decays.

(a) What are isotones? (b) A overset(alpha) to A_(1) overset(beta) to A_(2) overset(alpha) to A_(3) The mass number and atomic number of A are 180 and 72 respectively. What are these numbers for A_(3) ?

A radioactive nucleus undergoes a series of decay according to the scheme A oversetalphato A_1 oversetbetato A_2 oversetalpha to A_3 oversetgammato A_4 if the mass number and atomic number of A are 180 and 72 respectively, then what are these number for A_3

A radioactive nucleus undergoes a series of decays according to the sequence : A overset(beta)rarr A_(1) overset(alpha)rarr A_(2) overset(alpha) rarr A_(3) If the mass number and atomic number of A_(3) are 172 and 69 respectively, what rate the mass number and atomic number of A ?

A nucleus undergoes a series of decay according to the scheme A overset(alpha)(rarr) B overset(beta)(rarr)C overset(alpha)(rarr)D overset(gamma)(rarr) E Atomic number and mass number of E are 69 and 172

RESONANCE-NUCLEAR PHYSICS-Exercise -3 Part-III CBSE PROBLEMS (LAST 10 YEARS)
  1. A neutron is absorbed by a .(3)^(6)Li nucleus with the subsequent emis...

    Text Solution

    |

  2. What do you understand by isotopes, isobars and isotones? Explain with...

    Text Solution

    |

  3. The nucleus .^(23)Ne deacays by beta-emission into the nucleus .^(23)...

    Text Solution

    |

  4. Two nuclie have mass numbers in the ratio 1:2. What is the ration of t...

    Text Solution

    |

  5. A radiactive nucleus 'A' undergoes a series of decays according to the...

    Text Solution

    |

  6. Define the activity of a radionuclide. Write its SI unit. Give a plot ...

    Text Solution

    |

  7. Draw a plot of potential energy of a pair of nucleons as a function of...

    Text Solution

    |

  8. (a) Write symbolically the beta-decay process of ""(15)^(32)P. (b) ...

    Text Solution

    |

  9. How is the size of nucleus experimentally determined ? Write the relat...

    Text Solution

    |

  10. State the law of redioactive decay. Plot a graph showing the number (N...

    Text Solution

    |

  11. What is the effect on neutron to proton ratio in a nucleus when (i) an...

    Text Solution

    |

  12. A nucleus undertgoes beta-decay. How does its (i) mass number (ii) at...

    Text Solution

    |

  13. How is the radius of a nucleus related to its mass number ?

    Text Solution

    |

  14. (a) Derive the law of radioavtive decay, viz. N=N(0)e^(-lambda t) ...

    Text Solution

    |

  15. (a) Why photoelectric effect cannot be explained on the basis of wave ...

    Text Solution

    |

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

    Text Solution

    |

  17. Write the law of radioavtive decay. Decay constant of a radioactive su...

    Text Solution

    |

  18. For the past some time, Aarti had been observing some erratic body mov...

    Text Solution

    |

  19. The decay constant of a radioactive substance is 0.693 per minute. Wha...

    Text Solution

    |

  20. from the relation R=R0A^(1//3), where R0 is a constant and A is the ma...

    Text Solution

    |