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The set of quantom number for 19th electrons of chromium(Z=24) is
Options
(a) 4,0,0,+½
(b) 4,1,-1,+½
(c) 3,2,2,+½
(d) 3,2,-2,+½
Correct Answer:
4,0,0,+½
Explanation:
(Z= 24) ≡ 1s²,2s²,2p⁶,3s²,3p⁶,4s¹,3d⁵
For 19th electron (i.e.,4s¹)
n=4,n /=0, m=0, s= +½
Related Questions: - Which one of the following is an example of heterogenous catalysis
- The acidic, basic or amphoteric nature of Mn₂O₇, V₂O₅ and CrO are respectively
- A sample of CaCO₃ is 50% pure. On heating 1.12 L of CO₂ at STP is obtained
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Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Structure of Atom
(90)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following is an example of heterogenous catalysis
- The acidic, basic or amphoteric nature of Mn₂O₇, V₂O₅ and CrO are respectively
- A sample of CaCO₃ is 50% pure. On heating 1.12 L of CO₂ at STP is obtained
- The rate constant of the reaction A → B is 0.6 ˣ 10⁻³ mol per second.
- Which of the following is the most electropositive element
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Structure of Atom (90)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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