Cathode is negative: what does it attract?

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Study for the Introduction to Electrotherapy Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Cathode is negative: what does it attract?

Explanation:
A negative electrode attracts positively charged ions. The cathode has a negative charge, so it draws in cations from the solution because opposite charges attract. At the cathode, these cations can gain electrons (reduction). If the electrode were positive, it would attract anions instead. So the statement that a negative cathode attracts cations is the correct one.

A negative electrode attracts positively charged ions. The cathode has a negative charge, so it draws in cations from the solution because opposite charges attract. At the cathode, these cations can gain electrons (reduction). If the electrode were positive, it would attract anions instead. So the statement that a negative cathode attracts cations is the correct one.

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