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d and f BLOCK ELEMENTS
Question #38344
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Question
What is the electronic configuration of the ground state of Dubnium (Db, Z=105)?
A. [Rn] 5f¹⁴ 6d² 7s³
B. [Rn] 5f¹⁴ 6d⁴ 7s¹
C. [Rn] 5f¹⁴ 6d¹ 7s⁵
D. [Rn] 5f¹⁴ 6d³ 7s²
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