Properties of cathode

Chemistry

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Answer

Cathode ni elektrode ambapo upunguzaji (reduction) hutokea. Hii inamaanisha kwamba elektroni hupokelewa na spishi za kemikali kwenye uso wa cathode.

Sifa kuu za cathode ni:

  • Ni sehemu ambapo upunguzaji (gain of electrons) hufanyika.
  • Katika seli ya elektroliti, cathode ina chaji hasi na huvutia kationi (ioni zenye chaji chanya).
  • Katika seli ya galvaniki (voltaic), cathode ina chaji chanya lakini bado ni mahali pa upunguzaji.
  • Elektroni hutiririka kuelekea cathode kutoka kwenye mzunguko wa nje.
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