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Nuclear Chemistry question

2005 · Q103
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Nuclear Chemistry question

2005 · Q103

NEETChemistryNuclear ChemistryMCQ+4 / −1
A nuclide of an alkaline earth metal undergoes radioactive decay by emission of the periodic table to which the resulting daughter element would belong is
  1. A
    Gr.13
  2. B
    Gr. 17
  3. C
    Gr. 14
  4. D
    Gr. 16
View written solutionFree

Correct answer: C

When IIA group element (Ra) emits one α\alpha α-particle its group no. decreases by two unit. i.e., go into zero group (Gr. 16) But as it is radioactive thus due to successive emission last product is Pb i.e., (Gr.14).

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