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  • Identify the correct order of ascending atomic radii among the elements </

Identify the correct order of ascending atomic radii among the elements \mathrm{O, S, Se \: and\: As.}

Option: 1

\mathrm{As < S < O < Se}
 


Option: 2

\mathrm{ O < S < As < Se}


Option: 3

\mathrm{Se < S < As < O}


Option: 4

\mathrm{O < S < Se < As}


Answers (1)

best_answer

The atomic size increases as we move down a group. Hence, \mathrm{O < S < Se}. Further, the atomic size decreases as we move across a period left to right. Hence, \mathrm{Se < As.}

Correct order is \mathrm{O < S < Se < As.}

Hence Option 4 is correct.

Posted by

Pankaj Sanodiya

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