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The four succ...

Question

The four successive ionisation energies of an element are 900, 1760, 14850 and 21000 $k J m o l^{- 1}$ respectively. The number of valence electrons is:

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Solution

The correct option is B 2

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Similar questions

m o l^{- 1}

191, 578, 872

5962 k c a l

{m o l}^{- 1}

(X)

I_{1}, I_{2}, I_{3}, I_{4}

I_{5}

800, 2427, 3658, 25024, 32824 {kJ mol}^{- 1}

X

I E_{1} = 250 {kJ mol}^{- 1}

I E_{2} = 820 {kJ mol}^{- 1}

I E_{3} = 1100 {kJ mol}^{- 1}

I E_{4} = 1400 {kJ mol}^{- 1}

X

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