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What Is the Ground-State Valence-Shell Electron Configuration of the Group

Question 129

Multiple Choice

What is the ground-state valence-shell electron configuration of the group of elements indicated by the shaded portion of the periodic table? What is the ground-state valence-shell electron configuration of the group of elements indicated by the shaded portion of the periodic table? A) ns<sup>2</sup> B) ns<sup>2</sup><sup>np</sup><sup>2</sup> C) ns<sup>2</sup>(n-1) d<sup>2</sup> D) ns<sup>2</sup>(n-2) f<sup>2</sup>


A) ns2
B) ns2np2
C) ns2(n-1) d2
D) ns2(n-2) f2

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