MCQ
The successive ionisation energy values for an element $X$ are given below element $X$ belongs to group :-
$A. 1^{st}$ ionisation energy $= 410\, kJ\, mol^{-1}$
$B. 2^{nd}$ ionisation energy $= 820\, kJ\, mol^{-1}$
$C. 3^{rd}$ ionisation energy $= 1100\, kJ\, mol^{-1}$
$D. 4^{th}$ ionisation energy $= 1500\, kJ\, mol^{-1}$
$E. 5^{th}$ ionisation energy $= 3200\, kJ\, mol^{-1}$
  • $14$
  • B
    $13$
  • C
    $15$
  • D
    $12$

Answer

Correct option: A.
$14$
a

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