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An atom has electronic configuration 1s²2s²2p⁶3s²3p⁶3d³4s², you will place it in which group?
Options
(a) Fifth
(b) Fifteenth
(c) Second
(d) Third
Correct Answer:
Fifth
Explanation:
The electronic configuration clearly suggest that it is a d-block element (having configuration (n – 1) d¹⁻¹°ns°⁻²) which starts from III B and goes till II B. Hence with d³ configuration it would be classified in the group
Related Questions: - The oxidation state of S in H₂SO₄ is
- The heat of neutralization of a strong base and a strong acid is 57 kJ.
- The Formation of the oxide ion, O²⁻ from oxygen atom requires first an exothermic
- The atomic number of cobalt is 27. The EAN of cobalt in Na₃[Co(NO₂)₄Cl₂] is
- Which of the following is expected to form colourless complex
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
- The oxidation state of S in H₂SO₄ is
- The heat of neutralization of a strong base and a strong acid is 57 kJ.
- The Formation of the oxide ion, O²⁻ from oxygen atom requires first an exothermic
- The atomic number of cobalt is 27. The EAN of cobalt in Na₃[Co(NO₂)₄Cl₂] is
- Which of the following is expected to form colourless complex
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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