how many are contain in 2kg ? Mass of one neutron 1.67 x10^-27kg.

Question

how many are contain in 2kg ? Mass of one neutron 1.67 x10^-27kg.

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Quinn 2 months 2021-07-30T04:02:03+00:00 1 Answers 0 views 0

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    2021-07-30T04:03:38+00:00

    Answer:

    Explanation:

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    The number of neutrons is equal to the difference in the mass number and atomic number.

    It is equal to 14−6=8.


    (a) The number of neutrons present in 7 mg of C-14:

         =  

    14

    7×10  

    −3

     

    ​  

    ×6.02×10  

    23

    ×8

         

         =2.408×10  

    21

     neutrons


    (b) Total mass of neutrons in 7 mg of C-14:  

    =2.4088×10  

    21

    ×1.675×10  

    −27

     


    =4.035×10  

    −6

      kg.

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