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The number of unpaired electrons in 1s² 2s² 2p³ is
Options
(a) 3
(b) 1
(c) 5
(d) 2
Correct Answer:
3
Explanation:
1s² 2s² 2p³ ⇒ [1s² 2s² 2p¹(x) 2p¹(y) 2p¹(z)] / unpaired electrons = 3
Related Questions: - Which one of the elements has the highest ionisation energy?
- A certain mass of gas occupies a volume of 300 c.c. at 27⁰C and 620 mm pressure
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Topics: Structure of Atom
(90)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the elements has the highest ionisation energy?
- A certain mass of gas occupies a volume of 300 c.c. at 27⁰C and 620 mm pressure
- Oxidation number of Fe in Fe(CO)₅ is
- Which of the following is not a transition metal
- The hardest substance amongst the following is
Topics: Structure of Atom (90)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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