Q: Which one among the following is the correct ground-state electronic configuration of Cr atom?
(a)1s2 2s2 2p6 3s2 3p6 3d4 4s2
(b)1s2 2s2 2p6 3s2 3p6 3d5 4s1
(c)1s2 2s2 2p6 3s2 3p6 3d6 4s0
(d)1s2 2s2 2p6 3s2 3p6 3d3 4s2
Correct Answer: (b)
The correct answer is (c): 1s2 2s2 2p6 3s2 3p6 3d6 4s0. Subject: Science & Technology | Sub-topic: Chemistry Note: This answer was determined through AI-based research. Verify against the official answer key when available.