What is the correct formula for a potassium ion with 18 electrons? A)P⁺ B)K⁺ C)K^- D)P^- E)none of the above

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Quizplus · Accepted Answer

The atomic number of potassium (K) is 19, which means it has 19 protons and 19 electrons in a neutral atom. A potassium ion with 18 electrons would have a +1 charge, meaning it has lost 1 electron. The correct formula for a potassium ion with 18 electrons is K⁺, which indicates that it has lost its outermost electron in the S1 shell.

What Is the Correct Formula for a Potassium Ion with 18