Simun mishra Asked a Question
April 28, 2020 8:00 ampts 30 pts
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  • Dinesh khalmaniya thankyou
    check this.....if mass of electron is doubled and mass of n is halved..it mean no. of electron is not equal to n..and it's conseptual level question to check your consept..
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  • Simun mishra
    ok but how can we know about that here in this question it is not mentioned
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  • Dinesh khalmaniya
    so we have to solve this question according to conditions given in the question
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  • Dinesh khalmaniya Best Answer
    we are not talking about neutral atom.. it's correct if atom is neutral but ion is present then e can be less or more than n
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  • Simun mishra
    but no of e is equal to n so if e is doubled then why not n also doubled ...?then the ans will be 3+12 = 15
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  • Dinesh khalmaniya
    yeah it's 9u
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  • Simun mishra
    mass of e is doubled so it will be 12 and mass of n is halved then it will be 3 then the new atomic mass will be A= n+p so 3+6 = 9
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  • Dinesh khalmaniya
    solution
    • cropped5332496544360381762.jpg
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