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12th Class Chemistry Nuclear Chemistry / नाभिकीय रसायन Question Bank Critical Thinking Nuclear chemistry

  • question_answer
    If 1 microgram of radium has disintegrated for 500 years, how many alpha particles will be emitted per second

    A)            \[2.92\times {{10}^{4}}/\sec \]                                        

    B)            \[292\times {{10}^{4}}/\sec \]

    C)            \[0.292\times {{10}^{4}}/\sec \]                                      

    D)            \[29.2\times {{10}^{4}}/\sec \]

    Correct Answer: A

    Solution :

           \[2.92\times {{10}^{4}}\]a-particles will be emitted per second.


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