Which one of the following elements has the h | vedclass

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(D) The correct answer is $(D)$.Fluorine $(F)$ has the highest ionisation energy among the given elements.Ionisation energy generally increases across

Vedclass · Accepted Answer

$F$

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(D) The correct answer is $(D)$.Fluorine $(F)$ has the highest ionisation energy among the given elements.Ionisation energy generally increases across a period from left to right due to an increase in effective nuclear charge and a decrease in atomic size.Among $Na$ (Group $1$),$Mg$ (Group $2$),$C$ (Group $14$),and $F$ (Group $17$),$F$ is located furthest to the right in the periodic table,resulting in the strongest attraction between the nucleus and the valence electrons,thus requiring the most energy to remove an electron.

Element	Ionization energy $1^{st}$ $(kJ/mol)$	Ionization energy $2^{nd}$ $(kJ/mol)$
$X$	$495$	$4563$
$Y$	$731$	$1450$

Which one of the following elements has the highest ionisation energy?

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Which of the following has the highest first ionisation energy?

Identify the elements $X$ and $Y$ using the ionisation energy values given below :

Element Ionization energy $1^{st}$ $(kJ/mol)$ Ionization energy $2^{nd}$ $(kJ/mol)$

$X$ $495$ $4563$

$Y$ $731$ $1450$

Which of the following has the minimum ionization energy?

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