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Anand posted an Question

December 25, 2020 • 02:12 am

30 points

IIT JAM
Chemistry (CY)

Radius of aluminum will be..................

radius of aluminum will be.................. ............................

2 Answer(s)

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Dinesh khalmaniya 1

option D
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Priyanshu kumar Best Answer

option D
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Ro will be 1.2 × 10^-15 so R= 1.2 ×10^-15 ×3= 3.6 ×10^-15
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it will be option D but power of 10 will be -15 not -30
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Anand any doubt in this..please ask
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what is R0 here
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Ro is a constant
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having value 1.2 ×10^-15
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but radius of bohr 1 orbit is 0.529 A° na?
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no no it is not bohr radius...as for removing proportionality sign we put some constant i.e Ro= 1.2 ×10^-15
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check this relation
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sir here they have given radius of nucleus but , for radius of Al, we need distance from center to last electron na ie last orbit?
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Ro is radius of nucleus
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we have to find radius of aluminum and here Ro is constant using this we can find
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we. can't use this formula for other elements to find radius?
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other than H atom?
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we can use but here in this question there is relation between mass number na
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ohhkk
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