the ion k+ has\ngained one electron\ngained one proton\nlost one electron\nlost one proton
the ion k+ has\ngained one electron\ngained one proton\nlost one electron\nlost one proton
Answer
Brief Explanations:
Atoms become positively - charged ions by losing electrons. Potassium (K) has an atomic number of 19. When it forms a K⁺ ion, it loses one electron to achieve a stable electron configuration. Protons are not lost or gained in normal chemical reactions to form ions.
Answer:
C. lost one electron