Chemistry · Periodic Properties
The electronic configurations of five elements are given below: [A] 1s2 2s2 [B] 1s2 2s2 2p1 [C] 1s2 2s2 2p2 [D] 1s2 2s2 2p3 [E] 1s2 2s2 2p4 The correct order of first ionization enthalpies of these elements is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1[E] < [D] < [C] < [B] < [A]
- 2[B] < [A] < [C] < [E] < [D]✓
- 3[A] < [B] < [D] < [C] < [E]
- 4[A] < [B] < [C] < [D] < [E]
Correct answer
[B] < [A] < [C] < [E] < [D]
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