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Explain, in terms of electrons, why the radius of a potassium atom is larger than the radius of a potassium ion in the ground state.
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Explain, in terms of electrons, why the radius of a potassium atom is larger than the radius of a potassium ion in the ground state.

User Edgarzamora
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Because the Potassium ion loses an electron, the electrons come a little closer to the nucleus because they are attracted to the protons. This makes the ion smaller in radius
User Sancho Panza
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