Fromamongst Be, B and C, Choosethe elementwith highestand lowestfirsti

1.	Fromamongst Be, B and C, Choosethe elementwith highestand lowestfirstionizationenthalpy.
Answer» Solution :Carbonbecauseof its HIGHER nuclearcharge andsmallersize has thehighest `Delta_(i) H_(1)`amongst thegivenelements . B haslowest `Delta_(i) H _(1)` because incase of B , a 2p- electronis to belost whichis lessstronglyattracted by the nucleuswhilein CASEOF Be, a 2p-electronis to belostwhich ismore stronglyby THENUCLEUS.

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