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Simun Mishra posted an Question
April 28, 2020 • 13:30 pm
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30 points
30 points
- IIT JAM
- Chemistry (CY)
In c12 atom if mass of electron is doubled and mass of n is halved then the atomic mass of c12 is?
2 Answer(s)
Answer Now
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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 1
so we have to solve this question according to conditions given in the question
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Dinesh khalmaniya 1 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 1
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 1
solution
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Dinesh khalmaniya 1![best-answer]()
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..