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The element Bh has how many valence electrons?
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Q5: Give the electronic configuration for Mn<sup>2+</sup>.<br>A)[Ar]2s<sup>2</sup>2p<sup>6</sup>3d<sup>5</sup><br>B)[Ar]4s<sup>2</sup>3d<sup>3</sup><br>C)[Ar]4s<sup>1</sup>3d<sup>4</sup><br>D)[Ar]3d<sup>5</sup>
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