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The five successive energies of an eleme...

The five successive energies of an element are `800, 2427, 3658, 25024` and `32824 kJ mol^(-1)` respectively. The number of valence electron is

A

4

B

3

C

2

D

5

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JEE MAINS PREVIOUS YEAR ENGLISH-JEE MAINS 2020-CHEMSITRY
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