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Which of the following has largest size

Option: 1

Al


Option: 2

Al+


Option: 3

Al+2


Option: 4

Al+3


Answers (1)

best_answer

With successive ionisations, the size of the species decreases. This is due to an increase in the effective nuclear charge which tends to hold the valence electrons more tightly thus leading to a reduction in the size.

Thus, the correct order of size is: Al > Al^+ > Al^{2+} > Al^{3+}

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Gaurav

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