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Which electronic configuration of an element has abnormally high difference between second and third ionization energy ?
Options
(a) I s², 2s², 2p⁶, 3s¹
(b) I s², 2 s², 2 p⁶, 3s¹ 3 p¹
(c) I s², 2 s², 2 p⁶, 3s² 3 p²
(d) I s², 2s², 2p⁶, 3s²
Correct Answer:
I s², 2s², 2p⁶, 3s²
Explanation:
Abnormally high difference between 2nd and3rd ionization energy means that the elementhas two valence electrons, i.e., configuration(d)
Related Questions: - Which of the following is not permissible arrangement of electrons in an atom?
- The maximum valency of an element with atomic number 7 is
- Number of isomers of C₄H₁₀ is
- Reason of lanthanoid contraction is
- At 25⁰ C , the highest osmotic pressure is exhibited by 0.1 M solution of
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Classification of Elements and Periodicity
(94)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following is not permissible arrangement of electrons in an atom?
- The maximum valency of an element with atomic number 7 is
- Number of isomers of C₄H₁₀ is
- Reason of lanthanoid contraction is
- At 25⁰ C , the highest osmotic pressure is exhibited by 0.1 M solution of
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Classification of Elements and Periodicity (94)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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