Why is cation negatively charged while cathode is on the positive terminal of the battery??
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The cathode supplies electrons to the positively charged cations which flow to it from the electrolyte (even if the cell is galvanic, i.e., when the cathode is positiveand therefore would be expected to repel the positively charged cations; this is due to electrode potential relative to the electrolyte solution being ...
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In a galvanic (voltaic) cell, the anode is considered negative and the cathode is considered positive. This seems reasonable as the anode is the source of electrons and cathode is where the electrons flow.
The anode is the electrode where the oxidation reaction
Red⟶Ox+e−Red⟶Ox+eX−
takes place while the cathode is the electrode where the reduction reaction
Ox+e−⟶RedOx+eX−⟶Red
takes place. That's how cathode and anode are defined.
In a galvanic (voltaic) cell, the anode is considered negative and the cathode is considered positive. This seems reasonable as the anode is the source of electrons and cathode is where the electrons flow.
The anode is the electrode where the oxidation reaction
Red⟶Ox+e−Red⟶Ox+eX−
takes place while the cathode is the electrode where the reduction reaction
Ox+e−⟶RedOx+eX−⟶Red
takes place. That's how cathode and anode are defined.
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