The number of elements in \( 5^{\text {th }} \) and \( 6^{\text {th...

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The number of elements in \( 5^{\text {th }} \) and \( 6^{\text {th }} \) period of periodic
\( \mathrm{P} \) table are respectively -

W.
(1) 8,18
(2) 18,18
(3) 18,32
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