Electronic configuration of 1) Mn2+ (25) 2) Zn2+ (30).

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Solution

The atomic number of Manganese is 25 and its electronic configuration is [Ar]4s²3d⁵. The Mn²⁺ ion is formed when when Manganese loses the two electrons present in the 4s orbital. Hence, the electronic configuration of Zn²⁺ ion is [Ar]3d⁵

The atomic number of zinc is 30 and its electronic configuration is [Ar]4s²3d¹⁰. The Zn²⁺ ion is formed when when zinc loses the two electrons present in the 4s orbital. Hence, the electronic configuration of Zn²⁺ ion is [Ar]3d¹⁰.

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