The first ionization energy of alkaline earth | vedclass

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Question

(A) The first ionization energy of alkaline earth metals $(Group \ 2)$ is higher than that of alkali metals $(Group \ 1)$ because alkaline earth metal

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Increase in nuclear charge of alkaline earth metals

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(A) The first ionization energy of alkaline earth metals $(Group \ 2)$ is higher than that of alkali metals $(Group \ 1)$ because alkaline earth metals have a smaller atomic size and a higher nuclear charge compared to alkali metals in the same period.Due to the higher nuclear charge,the valence electrons are more strongly attracted by the nucleus,making it more difficult to remove an electron,thus resulting in higher ionization energy.

$I.E.$	$1^{st}$	$2^{nd}$	$3^{rd}$	$4^{th}$	$5^{th}$
Value	$577.5$	$1810$	$2750$	$11580$	$14820$

The first ionization energy of alkaline earth metals is higher than that of alkali metals. This is due to:

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The ionisation potentials of $Li$ and $K$ are $5.4 \ eV$ and $4.3 \ eV$ respectively. The ionisation potential of $Na$ will be ................ $eV$.

For one of the elements,various successive ionization enthalpies (in $kJ \cdot mol^{-1}$) are given below:

$I.E.$ $1^{st}$ $2^{nd}$ $3^{rd}$ $4^{th}$ $5^{th}$

Value $577.5$ $1810$ $2750$ $11580$ $14820$

The element is:

The first ionisation potential of $Na$,$Mg$,$Al$ and $Si$ are in the order :-

As compared to potassium,sodium has

The correct order of second ionisation potentials $(IP)$ of $Ca$,$Ba$ and $K$ is

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