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Which Configuration Represents an Alkaline Earth Element

Question 173

Multiple Choice

Which configuration represents an alkaline earth element?

A) [Ar] 4s¹ 3d⁵
B) [Ar] 4s² 3d⁴
C) [Xe] 5s² 5p¹
D) [Xe] 6s²4f⁷
E) [Rn] 7s²

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