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JEE MAIN - Chemistry Hindi (2020 - 5th September Morning Slot - No. 19)

छठी अवधि में, भरी गई कक्षिकाएँ हैं :
6s, 5d, 5f, 6p
6s, 4f, 5d, 6p
6s, 6p, 6d, 6f
6s, 5f, 6d, 6p

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