The number of naturally occurring p-block ele | vedclass

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(C) The group $18$ elements (noble gases) have completely filled valence subshells ($ns^2 np^6$,except $He$ which is $1s^2$).Due to the presence of pa

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$5$

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(C) The group $18$ elements (noble gases) have completely filled valence subshells ($ns^2 np^6$,except $He$ which is $1s^2$).Due to the presence of paired electrons in all orbitals,these elements are diamagnetic.The naturally occurring group $18$ elements are $He, Ne, Ar, Kr, Xe,$ and $Rn$.Since $Rn$ is radioactive,the number of naturally occurring stable $p$-block elements that are diamagnetic is $5$ $(He, Ne, Ar, Kr, Xe)$.

The number of naturally occurring $p$-block elements that are diamagnetic is

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