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Identify the pairs which are not of isotopes?

i) _{6}^{12}\textrm{X},\; _{6}^{13}\textrm{Y}

ii) _{17}^{35}\textrm{X},\; _{17}^{37}\textrm{Y}

iii) _{6}^{14}\textrm{X},\; _{7}^{14}\textrm{Y}

iv) _{4}^{8}\textrm{X},\; _{5}^{8}\textrm{Y}

 

 

Answers (1)

The answer is the options (iii) and (iv) because isotopes must have different atomic mass number but an identical atomic number.

Posted by

infoexpert22

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