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Ionisation Energy

The IE1 and...

Question

The $(I E)_{1}$ and the $(I E)_{2}$ in kJ mol $^{- 1}$ of a few elements designated by Roman numerals are shown below

Element $(I E)_{1}$ $(I E)_{2}$
A 2372 5251
B 520 7300
C 900 1760
D 1680 3380
Based on above information, Which represents a noble gas ?

A

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B

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C

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D

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Solution

The correct option is A $A$
From the above data, it can be seen that A has the highest value of first and second ionization potential.

$(I E_{1})$ is known as first ionisation potential and $(I E_{2})$ is known as second ionisation potential.

So (A) represents as a noble gas.

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{(I E)}_{1}

{(I E)}_{2}

{m o l}^{- 1}

{(I E)}_{1}

{(I E)}_{2}

{A X}_{2}

I . E ._{1}

I . E ._{2}

k J m o l^{- 1}

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(I E)_{2}

^{- 1}

M X_{2}

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\begin{matrix} I & I I I E_{1} & 400 & 589 I E_{2} & 2510 & 1120 \end{matrix}

I

I I

I E_{1}

I E_{2}

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