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Which one of the following ions has the largest radius
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Q1: The electron configuration of a copper(I)ion is<br>A)[Ar]4s<sup>2</sup>3d<sup>8</sup><br>B)[Ar]4s<sup>1</sup>3d<sup>9</sup><br>C)[Ar]3d<sup>10</sup><br>D)[Ar]4s<sup>2</sup>3d<sup>6</sup>4p<sup>2</sup><br>E)[Kr]
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