Home
Class 12
PHYSICS
An element X decays into element Z by tw...

An element X decays into element Z by two -steps process
`X to Y + He_(2)^(4)`
`Y to Z +2e` then

A

X and Z are isobars.

B

X and Y are isotopes

C

X and Z are isotopes

D

X and Z are isotopes.

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ATOMS, MOLECULES AND NUCLEI

    TARGET PUBLICATION|Exercise Evaluation test|19 Videos
  • ATOMS, MOLECULES AND NUCLEI

    TARGET PUBLICATION|Exercise Critical Thinking|62 Videos
  • CIRCULAR MOTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|11 Videos

Similar Questions

Explore conceptually related problems

An element A decays into element C by a two-step process : A rarr B + ._2 He^4 B rarr C + 2 e overline Then.

Two radio active nuclei X and Y decay into stable nucleus Z X to Z + 2alpha+ beta^- Y to Z + alpha + 2 beta^+ if Z_1 and Z_2 are atomic numbers of X and Y then

The three imaginary elements X,Y and Z represent a Döbereiner's triads. If the atomic mass of element X is 14 and that of element Y is 46, then the atomic mass of element Z will be:

A radioactive nucleus X undergoes spontaneous decay in the sequence z X to z-1 B to z-3 C to z-2 D, where Z is the atomic number of element Z. The possible decay particles in the sequence are:

The elements ,X ,Y and Z react as follows X_(2)O_(3) + 2Y to Y_(2)O_(3) +2X Y_(2) O_(3) +3C to 3CO +2Y Arrange the elements X,Y and Z in the order of their decreasing reactivity.

The atomic masses of three elements X,Y and Z having similar chemical properties are 7,23 and 39 respectively (a) Calculate the average atomic mass of elements X and Z (b) How does the averge atomic mass of elements X and Z compare with the atomic mass of element Y (c) Which law of classification of elements is illustrated by this example? (d) What could the elements X,Y and Z be? (e) Give another example of a set of elements which can be classified according to this law.

TARGET PUBLICATION-ATOMS, MOLECULES AND NUCLEI -Competitive Thinking
  1. Two nuclei have their mass numbers in the ratio of 1:3. The ratio of t...

    Text Solution

    |

  2. The size of atomic nucleus is

    Text Solution

    |

  3. An element X decays into element Z by two -steps process X to Y + He...

    Text Solution

    |

  4. Mp depends the mass of a proton and Mn that of a neutron. A given nucl...

    Text Solution

    |

  5. The radius of nucleus is:

    Text Solution

    |

  6. If radius of the .(13)^(27)Al nucleus is taken to be R(AI), then the r...

    Text Solution

    |

  7. If the nucleus of .13Al^27 has a nuclear radius of about 3.6 fm, then ...

    Text Solution

    |

  8. The radius of germanium (Ge) nuclide is measured to be twice the radiu...

    Text Solution

    |

  9. If the nuclear radius of .^27 A1 is 3.6 Fermi, the approximate nuclear...

    Text Solution

    |

  10. A nucleus ruptures into two nuclear parts, which have their velocity r...

    Text Solution

    |

  11. The average binding energy per nucleon is maximum for the nucleus

    Text Solution

    |

  12. Which of the following is stable?

    Text Solution

    |

  13. For uranium nucleus how does its mass vary with volume?

    Text Solution

    |

  14. What is the amount of energy released, when 3 kg mass is annihilated?

    Text Solution

    |

  15. 1.5 kg mass is annihilated. Energy liberated in this process is

    Text Solution

    |

  16. A certain mass of hydrogen is changes to helium by the process of fusi...

    Text Solution

    |

  17. The mass defect of He(2)^(4) He is 0.03 u. The binding energy per nucl...

    Text Solution

    |

  18. The masses of neutron and proton are 1.0087 a.m.u. and 1.0073 a.m.u. r...

    Text Solution

    |

  19. 1 g of hydrogen is converted into 0.993 g of helium in a thermonuclear...

    Text Solution

    |

  20. The binding energy per nucleus of ""(8)O^(17) is 7.75 MeV. The energy ...

    Text Solution

    |