Home
Class 12
CHEMISTRY
An element X has the following isotopic ...

An element X has the following isotopic composition:
`.^(200)X:90% .^(199)X:8.0% .^(202)X:2.0%`
The weight average atomic mass of the naturally occurring element X is closest to

A

204 amu

B

198 amu

C

197 amu

D

200 amu

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 48

    NTA MOCK TESTS|Exercise CHEMISTRY|45 Videos

  • NTA NEET SET 50

    NTA MOCK TESTS|Exercise CHEMISTRY|45 Videos

Similar Questions

Explore conceptually related problems

An element X has the following isotopic composition : .^(200)X:90%," ".^(199)X:8.0%," ".^(202)X:2.0% The weighted average atomic mass of the naturally occurring element X is closest to :

An element X has the following istopic compositon: .^(200)X(90%), .^(199)X(8.0%), .^(202)X(2.0%) The weighted average atomic mass of the naturally occuring element X is closent to

An element X has the following isotopic composition .^(200)X : 90%, .^(199)X: 8.0%, .^(202)X:2% . The Weighed average atomic mass of naturally occurring element X is closet to

An element, X has the following isotopic composition ""^(56)X : 90% ""^(57)X : 8% ""^(57)X: 2.0% . The weighted average atomic mass of the naturallyoccurring element X is closest to

0.25 gram atom of an element weighs 45.2 g. The atomic mass of the element X is

A sample of an element X contains two isotopes ._(8)^(16)X and ._(8)^(18)X . If the average atomic mass of this sample of the element be 16.2 u, calculate the percentage of the two isotopes in this sample.

(a) What are radioactive isotopes ? Give two examples of radioactive isotopes (b) Give any two uses of ratioactive isotopes (c) An element Z contains two naturally occuring isotopes ._(17)^(35) Z and ._(17)^(37)Z . If the average atomic mass of this element be 35.5 u, calculate the percentage of two isotopes.

NTA MOCK TESTS-NTA NEET SET 49-CHEMISTRY
  1. An element X has the following isotopic composition: .^(200)X:90% .^...

    Text Solution

    |

  2. The position of both , an electron and a helium atom is known within 1...

    Text Solution

    |

  3. In which of the following options the order arrangement does not agree...

    Text Solution

    |

  4. Which one of the following compounds shows the presence of intramolecu...

    Text Solution

    |

  5. For real gases, van der Waals' equation is written as (P+(an^(2))/(V...

    Text Solution

    |

  6. If C(s)+O(2)(g)rarrCO(2)(g),DeltaH=X and CO(g)+1//2O(2)(g)rarrCO(2)(g)...

    Text Solution

    |

  7. KMnO4 can be prepared fromK2MnO4 as per the reaction: The reactio...

    Text Solution

    |

  8. Setting of plaster of paris is

    Text Solution

    |

  9. Some statements about heavy water are given below : (i) Heavy water...

    Text Solution

    |

  10. Which of the following statements is false ?

    Text Solution

    |

  11. which statement is wrong ?

    Text Solution

    |

  12. Which among the given molecules can exhibit tautomerism?

    Text Solution

    |

  13. A dilute aqueous solution of Na(2)SO(4) is electrolyzed using platinum...

    Text Solution

    |

  14. Which one of the following statements is not true ?

    Text Solution

    |

  15. If NaCl is doped with 10^(-4)mol%of SrCl(2) the concentration of cati...

    Text Solution

    |

  16. Blood cells retain their normal shape in solution which are

    Text Solution

    |

  17. Consider the following relations for emf of a electrochemical cell (...

    Text Solution

    |

  18. For a zero order reaction '[R]0 is the initial concentration

    Text Solution

    |

  19. Which one of the following forms micelles in aqueous solution above ce...

    Text Solution

    |

  20. The most abundant metal in the earth crust is

    Text Solution

    |