Question

Potassium and potassium ions

• A. Have the same number of electrons
• B. are chemically same
• C. have the same number of protons
• D. None of the above

Answer 1

The correct option is C

have the same number of protons

Part 1: Explanation for the correct answer:--

Option c) Have the same number of protons

1. When an atom converts into an ion, only electrons from its outer shell will remove or added.
2. No change in the number of protons occurs as they are inside the nucleus.,

Part 2: Explanation for an incorrect answer-

Option a) Have the same number of electrons

1. When an atom converts into an ion, only the number of electrons will change.
2. Therefore the atomic state and ionic state do not have the same number of electrons.

Option b) Chemically same

1. Changes in the atomic state also change the chemical activity of the atom.
2. Sometimes an ion is more reactive than the atom itself.

Option d) None of the above.

The option is invalid.

Hence, Potassium and potassium ions option c) Have the same number of protons