Question

Which element have more atomic radius sodium magnesium aluminium?

Answer 1

IRON IS HAVING MORE ATOMIC RADIUS OR ANY ELEMENT OF PERIOD 3 4 5 6 7

Answer 2

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➡Radius decreases left to right andincreases top to bottom in periodic table

According to that the ascending order will be

Na >Mg> Al

As they lie in the 3rd period.