MCQ
Going from $K-$shell to $N-$shell in case of $H-$atom :
- ✓$K.E.$ decreases
- BTotal energy decreases
- CPotential energy decreases
- DNone of the above
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$C{H_2} = CH{(C{H_2})_8}COOH + HBr\xrightarrow{{peroxide}}....$

$(i){\,_{32}}G{e^{77}}$ $(ii)\,{\,_{33}}A{s^{77}}$
$(iii)\,{\,_{34}}S{e^{77}}$ $(iv)\,{\,_{34}}S{e^{78}}$