If A is [Rn] ,6d^2 ,7s^2 then identify block, period, group? - Vidyadip

Question

If $A$ is $[Rn]\,6d^2\,7s^2$ then identify block, period, group?

✓

Answer

d
$A = {}_{86}\left[ {Rn} \right]\,6{d^2}\,7{s^2}$

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