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What is the ground state and how do you find it? How would I find the answer to 2A.9: Which M3+ ions (where M is a metal) are predicted to have the following ground-state electron configurations?(a) [Ar]3d^7, (b) [Ar]3d^6, (c) [Kr]4d^4, (d) [Kr]4d^3?
you find the ground state by looking at the periodic table and seeing where the element falls and what s, p, or d orbitals it already fills. And then to get the 3+ charge you take away three electrons from the ground state.
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