The minimum charge on an ion is______________?
Correct answer: B. equal to the charge of an electron
- A. equal to the atomic number of the atom
- B. equal to the charge of an electron
- C. equal to the charge of the number of electrons in an atom (#) zero
Explanation
Ion charge is quantized in integral multiples of the elementary charge, so the smallest nonzero magnitude equals the charge of one electron. The ion may be positive or negative, but option b gives the fundamental charge magnitude.
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