The successive ionisation energy values for an element X are given below (I) 1 ionisation energy = 410 kJ mol (II) 2 ionisation energy = 820 kJ mol (III) 3 ionisation energy = 1100 kJ mol (IV) 4 ionis

Question

The successive ionisation energy values for an element X are given below (I) 1 ionisation energy = 410 kJ mol (II) 2 ionisation energy = 820 kJ mol (III) 3 ionisation energy = 1100 kJ mol (IV) 4 ionisation energy = 1500 kJ mol (V) 5 ionisation energy = 3200 kJ mol Find out the number of valence electron for the atom 'X'

(A) 4
(B) 3
(C) 5
(D) 2

Prashant Kotian · Accepted Answer

Correct answer: A

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